Select all that apply. Select the features, plants, and animals that are characteristic of the coniferous forest biome.
A) warm, humid summers
B) largest land biome
C)extreme temperatures
D) little rainfall
E) hawks
F) cacti
G) pines
H) maples
I) deer
The features, plants, and animals that are characteristic of the coniferous forest biome.
A) warm, humid summers
C)extreme temperatures
D) little rainfall
E) hawks
G) pines
H) maples
I) deer
Answer: A) warm, humid summers
C)extreme temperatures
E) hawks
G) pines
I) deer
Explanation:
The coniferous forests are found in regions of Asia, Canada, and US. This biome exhibit hot summers and cool winters that means exhibit extreme temperatures. These regions receives heavy rainfall. They are dominated by the coniferous trees such as pines. Hawks lives in coniferous forests which have been found nesting the coniferous trees. Deer can be found in these biomes as one of the herbivorous species.
Discussion Topic Earth’s surface is broken into large pieces that are slowly shifting. This gradual process, known as plate tectonics, accounts for movement of entire continents over time. During the past century, geologists have found multiple lines of evidence that support the theory of plate tectonics, including the mechanism that drives the plates’ motion—sea floor spreading. As a result, sections of Earth’s crust are constantly being pulled apart or pushed together. This movement creates many of Earth’s landforms, such as mountains, rift valleys, and volcanoes. According to the theory of plate tectonics, 250 million years ago all of Earth’s landmasses were clustered into one supercontinent, known as Pangea. Based on the past and current movements of Earth’s plates, predict how the location of the continents might shift during the next 250 million years. Do you think they’ll spread out, cluster together, or move in a combination of the two? What types of landforms do you anticipate forming as a result? What effect, if any, do you anticipate this movement will have on life on Earth?
I believe that the tectonic plates will continue to move unpredictably for the next 250 million years, which will cause the continents to spread more and to come together a little in a few moments. This movement will continue to cause changes in the relief of all regions of the earth, creating other valleys, volcanoes and mountains as a result.
In relation to life on earth, the movement of tectonic plates may end up creating geographic barriers and separating populations of species that will have to adapt to new regions, evolving and creating new species.
According to the theory of plate tectonics, Earth's crust is moving due to slow convection within the mantle. The movement of these plates contributes to the shifting of continents and the formation of various landforms like mountains, rift valleys, and volcanoes. Future tectonic activities, while hard to predict accurately, may lead to new geographical features and impact life on Earth.
Explanation:The theory of plate tectonics is a fundamental concept in geology. It dictates that the Earth's crust and upper mantle, divided into numerous large plates, move due to slow convection within the mantle. The plates can interact in four basic ways at their boundaries: pulling apart (like at the Mid-Atlantic ridge), burrowing under one another, sliding alongside, or jamming together.
The repercussions of these movements include the gradual drifting of continents, and the shaping of landforms like mountains, rift valleys, and volcanoes. For instance, the formation of the Alps is a result of the African plate colliding with the Eurasian plate.
Predicting the future movements of these plates and their subsequent impacts on landforms and life on Earth is complex. However, if tectonic activity continues as currently understood, a combination of spreading and clustering of continents might happen. This movement might lead to the formation of new mountain ranges, valleys and possibly trigger more volcanic activity, which could affect the evolution and dispersal of life on Earth.
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Headlands are formed through wave deposition. true or false?
True , headlands are not formed through wave deposition.
What are headlands?A headland, also known as a head, is a coastal landform, a point of land usually high and often with a sheer drop, that extends into a body of water.
A headland of considerable size often is called a cape. Headlands are characterised by high, breaking waves, rocky shores, intense erosion, and steep sea cliff.
Headlands are formed when the sea attacks a section of coast with alternating horizontal bands of hard and soft rock.
Since a sea arch is formed through wave erosion.
Therefore, Headlands are formed by through wave deposition.
We can say Headlands are formed to wave deposition.
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The aleutian islands extend westward from southern Alaska to form the northern boundary of the Pacific Ocean. These volcanic islands were formed by the nearby...
A. subduction of a continental plate
(B. subduction of an oceanic plate)-answer but why is this the answer?
C. divergence of a continental plate
D. divergence of an oceanic plate
The correct answer is B
Subduction of a ocean plate.
Aleutian islands extend westward from southern Alaska to form the northern boundary of the Pacific Ocean when the Pacific plate gets subducted under North American Plate at a dip of 45 degrees. The pacific is an oceanic tectonic plate that lies beneath the Pacific Ocean. And thus the correct answer is option B
During translation a peptide bond forms between the R group of
a. the first amino acid and the carboxyl group of the second amino acid.
b. the central B-carbon of the first amino acid and the amino group of the second amino acid.
c. the amino group of the first amino acid and the R group of the second amino acid.
d. the carboxyl group of the first amino acid and the amino group of the second amino acid.
e. the amino group of the first amino acid and the carboxyl group of the second amino acid.
During translation, a peptide bond is formed between the amino group of the first amino acid and the carboxyl group of the second amino acid in the growing polypeptide chain.
Answer:
e. the amino group of the first amino acid and the carboxyl group of the second amino acid.
Which of the following is NOT part of protein synthesis?
mutilation
replication
transcription
translation
Mutilation is not part of protein synthesis, which includes transcription of DNA to mRNA, and translation of mRNA to a polypeptide chain.
The part of protein synthesis that is NOT included in the process is mutilation. Protein synthesis is a two-step process that includes transcription and translation. During transcription, the genetic code from DNA is transcribed into messenger RNA (mRNA). This mRNA then serves as a template for translation, where the sequence of nucleotides in mRNA is used to synthesis a polypeptide chain with the help of transfer RNA (tRNA) molecules.
Contrastingly, replication is the process of duplicating DNA prior to cell division, not involved in protein synthesis. Mutilation, not being a biological term typically associated with genetics or molecular biology, certainly does not pertain to this process.
This is a compound made up of carbon hydrogen and oxygen atoms it is used by cells to store and release energy sugars are made by chloroplast do this and consumed by mitochondria is through cell Respiration
The answer is; glucose
It is a 6 carbon ring simple sugar and is the most abundant monosaccharide in the body. Its levels in the body are referred to as blood sugars. Larger carbohydrates consumed in the diet are broken down to glucose utilized in respiration (Glycolysis and Krebs cycles) to produce the energy required by the cells. Plants, on the other hand, manufacture carbohydrates in photosynthesis.
The compound composed of carbon, hydrogen, and oxygen mentioned is glucose, which is critical in energy storage and release in cells. It's made by plants via photosynthesis and is then broken down and used for energy via cellular respiration in mitochondria, where it aids in the synthesis of ATP - the energy 'currency' of cells.
Explanation:The compound you're referring to, made up of carbon, hydrogen, and oxygen atoms, is called glucose. Glucose, with the formula C6H12O6, plays a pivotal role in energy storage and release in cells through a process known as cellular respiration.
During this process, energy is extracted from glucose, which is then used to synthesize a compound called adenosine triphosphate (ATP). ATP serves as the 'currency' of energy within cells, storing and delivering energy as required for various cellular functions.
Glucose is produced by plants through photosynthesis, a process in which they convert solar energy, carbon dioxide, and water into glucose and oxygen. The glucose produced is then used by the plant for its energy needs, with excess glucose being stored as starch.
When animals, including humans, consume plants, they catabolize, or break down, the starch back into glucose for their energy needs.
So, to summarize, glucose acts as a crucial intermediary in the transfer of energy from the sun to all living organisms, providing power for key cellular processes through its role in the synthesis and utilization of ATP.
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(oxygen, electron transport chain, chemiosmosis, NADPH)
ATP synthesis in both chloroplasts and mitochondria involves the process called _______
In both cellular respiration and photosynthesis, a(n) _________ built into a membrane pumps H+ across the membrane as electrons are passed from one electron carrier to the next in a series of redox reactions
In respiration, the electrons come from the oxidation of organic molecules, and __________is the final electron acceptor.
In photosynthesis, the electrons come from water and end up in ___________
Hai there :3 I'm planning to study chemical engineering.
Question related to Biochemistry (Photosynthesis & Cellular Respiration)
1. Chemiosmosis. In the process of chemiosmosis, specific enzymes (such as ATP synthase) create ATP. Hydrogen ions go from a higher proton concentration to a lower one, which is why it's called chemio"osmosis"
2. Electron Transport Chain (ETC). The name says it all. Simply explained, electrons are transported and transferred in the mitochondrial membrane.
3. Oxygen. O2, the diatomic molecule, is essential in respiration. In the final stage of respiration, at the near end of the electron transport chain, oxygen accepts protons to become water. Cells use O2 during oxidative phosphorylation.
4. NADPH. I remember learning what this acronym means by heart. Nicotinamide Adenine Dinucleotide Phosphate Hydrogen. NADPH is essential in photosynthesis as a typical coenzyme in the reduction of chemical reactions.
Locomotion in Metazoa is usually due to the contraction of what? a. Skeleton b. Muscle c. Skin d. Nerves
Answer: b. Muscles
A metazoa is a division of animal kingdom that includes all animals expect protozoa and sponges. Metazoa division includes multicelluar animals, which exhibit highly differentiated cells. They have muscular and nerve system and well coordinated tissues and organs. Locomotion requires a coordination activity of muscular, skeletal and neural system. It is mainly achieved by contraction and relaxation of muscles that occurs due to specialized muscle proteins named as actin and myosin which receives signals from nerves.
Hence, locomotion in metazoa is due to contraction of muscles.
Grizzly bears in Yellowstone National Park have become repeatedly exposed to human beings, such as campers and hikers. These grizzly bears no longer exhibit a fear response to humans because
A. their instincts are to not be afraid of humans.
B. they are modeling the behavior of the humans.
C. they have become habituated to human contact.
D. they have imprinted on humans.
What effect do you think the angularity of rock chips has on the rate of weathering? Help asap.
A population of pigs livess on an island together with burrowing termites . Pigs thatbhave the longest snouts tend to survive better over time most of the pig population is amde up of individuals that have very long snouts. This is an example of which type of selection
This is an example of directional selection. Basically, this happens when one extreme of the trait distribution experiences selection against it, such as choosing long snouts over short snouts.
Answer:
a
Explanation:
Which is NOT a potential threat or danger to an ecosystem rich in biodiversity? A) Deforestation B) Plate Tectonic Activity C) Global Warming/Climate Change Eliminate D) Genetic diversity among species
The correct answer is option D, that is, genetic diversity among the species.
The sum of genetic characteristics in the genetic makeup of a species is known as genetic diversity. It is differentiated from genetic variability that illustrates the capability of genetic features to change.
The genetic diversity functions as a medium for the populations to amend with the fluctuating environments. With more changes, there is more possibility that some individuals in a population will exhibit different forms of alleles, which are appropriate for the surrounding.
These individuals hold high possibilities of survival in order to generate offspring exhibiting that allele. The population will continue for more generations due to the accomplishment of these individuals.
Answer:
D)
Explanation:
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In what location would primary succession most likely occur?
An area that was covered by a glacier
An area that was in a long drought
An area that had severe flooding
An area that was hit by a hurricane
Answer:
An area that was covered by a glacier
Explanation:
Primary succession is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited.
Primary succession would most likely take place in an area that was covered by a glacier, as it leaves behind bare rock which is a blank slate for succession to begin, starting with the activity of pioneer species.
Primary succession would most likely occur in an area that was covered by a glacier. This is because primary succession is ecological succession that happens on lands where life has not previously existed, such as newly formed land from lava flows or land exposed after a glacier recedes. The melting and retreat of glaciers leave behind bare rock, as the glacial movement scours the landscape down to bedrock, removing any preexisting soil. Thus, this sets the stage for primary succession, where soil must first be produced before life can begin to establish itself.
Pioneer species, like lichens and some mosses, are crucial to the soil formation process during primary succession. These organisms can grow on bare rock and contribute to the gradual breakdown of these rocks and the accumulation of organic material, which over time leads to the formation of soil.
In higher latitudes where lakes freeze over in winter, how do cool autumn tempe]ratures help fish make it through the winter?
A-The cooling water slows fish metabolisms down and allows them to go into hibernation in winter.
B-Water from the bottom of the lake raises and provides oxygen to the cooler waters on the surface.
C- Cool water at the surface traps nutrients deep in the lake to provide food during the winter.
D-The water in contact with the air sinks and mixes with the less oxygenated water in the deeper levels.
Answer:
C- Cool water at the surface traps nutrients deep in the lake to provide food during the winter.
Explanation:
As the fish have the ability to adapt to the changing temperature and they are generally are cold-blooded animals and the colder temperatures mean a reduction in the metabolic rates of the fish and this slow the numerous process of the digestion, feeding activity and thus they are often classified as cold, warm freshwater species. Atmospheric oxygen is needed for them to survive in the cold and they feed on the planktons and take the nutrients and the minerals from the surface of the and there don't remain so active as the period of the summer and the spring months.In autumn, cool temperatures cause fall turnover in lakes, where cold surface water sinks and mixes with bottom waters, redistributing oxygen and nutrients which are crucial for fish and other organisms to survive through the winter. Option D) which is The water in contact with the air sinks and mixes with the less oxygenated water in the deeper levels is correct answer.
During autumn, as air temperatures drop, the water in lakes cools down, reaching a temperature of about 4 °C, which causes fall turnover. This process involves the heavy, cold water sinking and displacing the water at the bottom, leading to a mixing of the lake's waters. As a result, the oxygen-rich water from the surface descends to the bottom, while nutrients from the lake's bottom are brought up to the top.
This vertical circulation is crucial because during winter, the oxygen at the bottom is necessary for the survival of organisms, particularly fish and decomposers. Additionally, the ice forming on the surface of the lake helps insulate the water beneath, ensuring the survival of aquatic life through the cold season. option D) is the correct answer.
Which of the following occurs as a cell decreases in size?
1Points
A
The surface area volume ratio increases.
B
The surface area increases.
C
It is more difficult to transport waste and nutrients in the cell.
D
The volume increases.
My answer will be option A. "The surface area volume ratio increases.This is because, with normal growth, the cell gets bigger and bigger and its speed of waste production and its need to obtain resources increase faster than the surface where it is supported This explains why large organisms must consist of many small cells: cells are small in volume to maintain a large surface-to-volume ratio.
Correct answer: A). The surface area volume ratio increases.
A cell is like a compartment where various types of chemical reaction occur, like any living thing it also grows and increases in size. The higher the volume of the cell the larger reactions can occur in the cell. It means that higher surface area will allow a large exchange of substances through the cell.
If the size of the cell is decreased, it means its surface area to volume ratio also decreases, but at unequal rates. The volume would decrease faster as compared to the surface area which will lead to an increase in the surface area to volume ratio.
Hence, as the cell size decrease, the surface area to volume ratio increases.
Which of the following is NOT characteristic of adolescence?
a. identity versus confusion
b. formal operational stage of cognitive development
c. preconventional level of moral development
d. growth spurt
B. Formal operational stage of cognitive development
Preconventional morality: It is the earliest stage of moral development around nine years, the rules are external imposed by authority figures and seek to avoid punishment or receive a reward.
Conventional morality: In this second phase most adolescents and adults, individuals learn about rules and authority, which govern how they should or should not behave, in addition to learning to obey them.
The answer is: c. Preconventional level of moral development.
What is the secondary meristem that produces wood toward the inside and bark toward the outside of a tree
levels of organization in the ecosystem
The levels of organization in the ecosystem are: population, community, ecosystem, and biosphere.
describe how sodium atom forms a bond with a chlorine atom
The sodium atom loses an electron and becomes positively charged. The chlorine atom gains an electron and becomes negatively charged. The two charged ions then form an ionic bond. Hope this helps
Even though sodium has a proclivity to lose an electron and chlorine has a proclivity to gain an electron, the components are well suited to bond with one another. This electron transfer results in the formation of the ionic bond that holds Na+ and Cl- together.
What is ionic bond?Ionic bond, also referred to as electrovalent bond, is a type of interconnection established in a chemical compound by the electrostatic attraction of oppositely charged ions.
When the valence (outermost) electrons of one atom are permanently transferred to another, a bond is formed.
An ionic bond is formed when a metal and a nonmetal interact, whereas a covalent bond is formed when two nonmetals interact.
Despite the fact that sodium has a tendency to lose an electron and chlorine has a tendency to gain an electron, the components are well suited to bond with one another.
The formation of the ionic bond that holds Na+ and Cl- together is the result of this electron transfer.
Thus, this way sodium atom forms a bond with a chlorine atom.
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What creates global winds?
Air over the ocean.
An area of high pressure.
Differences in heating.
An area of low pressure.
Answer:
C
Explanation:
Answer:
C.: Differences in heating
Explanation:
Temperature controls the air movement.
Marissa is testing a hypothesis through experimentation. She believes that immersing ocean coral in carbonic acid will slow the coral’s growth. Which of these actions will prevent Marissa from introducing confounding variables into her experiment?
She releases cement particles into a random number of the coral samples.
She uses three different types of coral to establish her dependent variables.
She treats the coral samples identically with varying levels of carbonic acid.
She obtains her coral samples from coral reefs surrounding different continents.
Answer:
C. She treats the coral samples identically with varying levels of carbonic acid.
Explanation:
She releases cement particles into a random number of the coral samples.
Doing this is uncontrolled, using a random number for anything in an experiment is a no no.
She uses three different types of coral to establish her dependent variables.
Different types of coral could react differently to the acid, always use only one dependent variable in an experiment.
She obtains her coral samples from coral reefs surrounding different continents.
It is important that the samples of coral be as close to the same as possible so that the coral variables stay constant.
Answer:
C.
She treats the coral samples identically with varying levels of carbonic acid.
Explanation:
What is the aorta? A. a valve that prevents backflow of oxygenated blood into the heart B. the wall of thick cardiac muscle that separates the two ventricles C. a vein that carries deoxygenated blood from the heart to the lungs D. an artery that carries oxygenated blood from the heart to the body
D. Is the correct answer
Why are cinder cones short-lived?
Usually the lava flows come towards the end of the eruption, once the magma has lost enough of its volatiles to flow more quietly. Cinder cone eruptions are comparatively short lived, and thus cinder cones are much smaller features than stratovolcanoes and shield volcanoes (usually no more than a mile at the base).
Cinder cones are short-lived because they erode quickly after formation due to their composition of light, loosely-packed materials. Additionally, their volcanic activity tends to decline rapidly after the initial eruption.
Explanation:Cinder cones, a type of volcano, are considered short-lived due to their geological lifespan. This is because cinder cones are formed through the rapid eruption of gases and volcanic ash which culminate into a cone shape. Over time, the materials of the cinder cone structure, being light and loosely packed, erode quickly, leading to the short-lived nature of cinder cones. They tend to cease an activity a billion years or more ago, as evidenced by the prevalence of impact craters found on them. However, it is notable that some volcanic features such as Olympus Mons may remain intermittently active today.
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I believe the answer is A
Materials:
4 eggs
Two cups of milk (preferably whole/full cream, or made from powdered milk)
Your own hair from a hairbrush or comb
Small saucepan
Mixing bowl
Baking tray or cookie sheet
Aluminum foil
Candy Thermometer or Cooking/Meat thermometer
Stove/Oven (with oven mitts/pot holders)
_____________________________________________
Part A: Eggs
Crack your eggs over your mixing bowl one at a time. Separate the egg whites and yolks so that only egg whites are in your mixing bowl. If you get any egg yolk into your egg white mixture, you will need to restart.
Pour the raw egg whites into a small saucepan and place over “low heat” on your stove.
Place your thermometer into the mixture and begin recording the temperature of the egg whites.
Make observations about the egg white mixture as the temperature increases. You might want to mention the appearance, color, texture, or smell of the mixture. Record all observations and their associated temperatures in your data table.
Keep heating the mixture until a clear texture change in the entire mixture occurs. You may need to increase the heat of the stovetop if the mixture’s temperature isn’t increasing.
Dispose of the egg whites. Clean the saucepan, mixing bowl, and thermometer
_____________________________________________
Part B: Milk
Pour two cups of milk into your clean saucepan. If you are using powdered milk, first combine the powdered milk with about two cups of water, mix well, and let sit before adding to saucepan.
Turn the stove on to low heat and insert your thermometer to begin recording temperature.
Make observations about the milk as the temperature increases. Try to mention the appearance, color, texture, or smell of the mixture. Record all observations and their associated temperatures in your data table.
Keep heating the mixture until there is a clear texture change. You may need to increase the heat of the stove top if the temperature isn’t increasing.
Dispose of the milk. Clean the saucepan, bowl, and thermometer
_____________________________________________
Part C: Hair
Preheat your oven to 200 degrees Fahrenheit.
Place aluminum foil over your baking/cookie sheet.
Acquire some of your own hair from a comb or toothbrush and place it on your covered baking/cookie sheet. Insert the sheet into the oven once it has reach 200 degrees Fahrenheit.
Let the hair heat up in the oven, watching for any changes (about 5 minutes).
Increase the temperature of the oven by 25 degrees Fahrenheit and allow the hair to heat up for 5 minutes. Record any changes to the hair appearance or texture. You can simply observe the hair through the oven window, but you may want to remove the hair from the oven for a closer look. Make sure to use oven mitts and to not open the oven too often (one observation per temperature increase will be enough).
Record all observations and their associated temperatures in your data table. Keep heating the hair until there is a noticeable change in appearance or texture.
Remove the hair from the oven and turn it off. Allow the hair to cool and then dispose of the hair and aluminum foil.
Questions:
________
About at which temperature did the protein in eggs denature? How could you tell?
About at which temperature did the protein in milk denature? How could you tell?
About at which temperature did the protein in hair denature? How could you tell?
Why do you think different proteins denature at different temperatures?
Why might it be useful to denature a protein?
Protein Denaturation
NAME OF MAIN PROTEIN: TEMPERATURE: OBSERVATION:
EGGS: - 144°F - Then four eggs were cracked into a bowl and separate the yolk from the egg whites. Then was poured the raw egg whites into a saucepan and turn the stove on low heat, then placed the thermometer. The temperature of the egg whites began to increase 80°F. The texture began to become tough and rubber like. The temperature began to increase again to 160°F.
MILK: - 180°F - Two cups of milk was then poured the into a clean saucepan, then was turned it on low heat and inserted the thermometer into the saucepan. The temperature of the milk began to increase to 80°F. The color stayed the same and the texture began to thicken.
HAIR: - 225°F - The oven was then preheated to 200°F, then put aluminum foil over your baking sheet. Hair was revieved from a hair brush and placed was on the baking sheet, then put the baking sheet in the oven. The hair heated for 5 minutes then increased the oven to 225°F, then it heated for another 5 minutes. The texture of the the hair became stiffer and dry.
Questions:
1. What is the most abundant type of protein in egg white? What do you think its purpose is?
2. What is the most abundant type of protein in milk? What do you think its purpose is?
3. What is the most abundant type of protein in human hair? What do you think its purpose is?
4. What happens when a protein denatures?
5. What conditions might cause a protein to denature (list at least two)?
Answers:
1. The most abundant type of protein in egg white is ovalbumin is the most abundant protein in albumen.
2. The most abundant type of protein in milk is caseins.
3. The most abundant type of protein in human hair is biomaterial primarily composed of protein, especially alpha-keratin.
4. Denaturation of proteins involves the destruction of the tertiary and secondary structure.
5. Conditions that might cause a protein to denature is the heat increases the knortic energy which causes the molecules to vibrate so rapidly and violently that the bonds are disrupted, and the heat can disrupt hydrogen bonds and non-polar hydrophobic interaction.
Question:
1. About at which temperature did the protein in eggs denature? How could you tell?
2. About at which temperature did the protein in milk denature? How could you tell?
3. About at which temperature did the protein in hair denature? How could you tell?
4. Why do you think different proteins denature at different temperatures?
5. Why might it be useful to protein?
Answer:
1. After a few minutes, the temperature of the eggs increased to 80°F, then five minutes later it increased agin to 160°F. The eggs then began to become tough and rubbery.
2. After a few minutes, the temperature of the boiling milk increased to 80°F. It then became a thick consitantsy.
3. After the hair was in the oven set at 200°F, the hair became stiff like, then was bumped up to 225°F. It then became stiffer and dry.
4. Yes, different proteins denature at different temperatures can melt above 106°F.
5. Denature a proteins change their structure in the presence of certain chemicals, acids or bases.
In this assignment, data was collected throughout the experiments. During the egg white experiment, the temperature rose of the egg whites began to increase 80°F, then increase again to 160°F, texture began to become tough and rubber like. During the milk experiment, temperature of the milk began to increase to 80°F, the color stayed the same and the texture began to thicken. During the hair experiment, the hair heated for 5 minutes in the 200, the oven was increased to 225°F. Then heated for another 5 minutes, then the texture of the the hair became stiffer and dry.
Material:
⦁ 4 eggs
⦁ Two cups of milk
⦁ Your own hair from a hairbrush
⦁ Small saucepan
⦁ Mixing bowl
⦁ Baking tray
⦁ Aluminum foil
⦁ Candy Thermometer
⦁ Stove and Oven
The protein in eggs denatures at 60-70 degrees Celsius, while the protein in milk denatures at 70-80 degrees Celsius. Hair protein typically denatures at temperatures above 150 degrees Celsius. Proteins denature at different temperatures due to their unique structures and compositions. Denaturing proteins can be useful in cooking and research applications.
Explanation:The protein in eggs denatures at a temperature of around 60-70 degrees Celsius. You can tell that the protein has denatured because the appearance of the egg white changes from clear to opaque white as it cooks.
The protein in milk denatures at a temperature of around 70-80 degrees Celsius. You can observe the denaturation of milk protein by noting a change in the appearance, color, and texture of the milk as it heats up.
The temperature at which hair protein denatures can vary, but it typically occurs at temperatures above 150 degrees Celsius. You can tell that the protein in hair has denatured by observing changes in its appearance and texture, such as a change in color or a brittle texture.
Proteins denature at different temperatures because each protein has a unique structure and composition. The stability of a protein's structure depends on the specific interactions between its amino acids, which can be affected by factors like temperature and pH. Some proteins are more heat-tolerant and have adapted to function at higher temperatures, while others are more sensitive and denature at lower temperatures.
Denaturing a protein can be useful in a variety of contexts. For example, denaturing proteins in food during cooking helps to improve their digestibility and enhance their flavor. In research and biotechnology, denaturing proteins can help to study their structure and function, or to isolate specific protein components.
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Which natural cycle is affected the most by the use of fertilizers? A. oxygen cycle B. water cycle C. carbon cycle D. nitrogen cycle
The most logical option is Option D, the most affected cycle by the use of fertilizers would be the nitrogen cycle.
Why are yeast cells frequently used as hosts for cloning?
A) they easily form colonies
B) they can remove exons from mRNA.
C) they do not have plasmids.
D) they are eukaryotic cells
E) only yeast cells allow the gene to be cloned
Yeast cells frequently used as hosts for cloning as they are eukaryotic cells. So, the correct option is (D).
What are Yeast cells?
Yeast cells are defined as round to elongated cells that reproduce vegetatively by budding or sprouting to produce the mycelium found in some members of the Mucorales.
These are eukaryotic, single-celled microorganisms classified as members of the fungi kingdom. The first yeasts originated hundreds of millions of years ago having at least 1,500 species are currently recognized and are estimated to account for 1% of all described fungal species.
These cells are usually used for cloning as host as they are eukaryotic cells.
Thus, Yeast cells frequently used as hosts for cloning as they are eukaryotic cells. So, the correct option is (D).
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Yeast cells are frequently used in cloning because they are eukaryotic, a fundamental likeness to many other organisms, which aids in genetic engineering. Also, they form colonies easily, allowing researchers to identify successful cloning events and isolate each individual clonal population.
Explanation:Yeast cells are commonly used as hosts for cloning for several reasons. Firstly, yeast cells are eukaryotic, making them similar to many other organisms in a fundamental way, which is advantageous for genetic engineering purposes. This likeness is key for post-transcriptional modifications, and yeast cells have the necessary machinery to carry out processes such as splicing and polyadenylation.
Secondly, yeast cells can easily form colonies, which makes the identification of successful cloning events easier. By formulating colonies, researchers can isolate and analyze each individual clonal population. This is ideal for experiments in which the effects of a single gene need to be studied in a controlled environment.
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The graph shows the number of calories that two people burn while they perform various exercises for one hour each. Which conclusion is supported by the graph? The 200-pound person burns more calories per hour doing aerobics than doing any other exercise shown. The 160-pound person burns about 50 calories per mile while jogging. The 200-pound person would need to play volleyball for three hours to burn the same number of calories as he burns in one hour of basketball. The 160-pound person burns about twice as many calories jogging as she does walking.
The answer is "The 160-pound person burns about twice as many calories jogging as she does walking"
Let's put a letter to each statement in order to make it easier to understand.
Statements:A - The 200-pound person burns more calories per hour doing aerobics than doing any other exercise shown: False, we can see that the 200-pound person burns more calories per hour doing basketball and jogging than doing aerobics.
B - The 160-pound person burns about 50 calories per mile while jogging: False, we can see that the 160-pound person burns much more than 50 calories per mile while jogging (more than 100 calories).
C - The 200-pound person would need to play volleyball for three hours to burn the same number of calories as he burns in one hour of basketball: False, if the 200-pound person plays volleyball for three hours it will be about 1000 calories burned (burns about 350 per hour playing volleyball).
D - The 160-pound person burns about twice as many calories jogging as she does walking: True, we can see that the 160-pound person burns about 600 calories jogging while she burns almost 300 calories walking.
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