What is the brown structure embedded in the cell membrane? What is the function of this brown structure?
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Related Questions
A homozygous recessive mom is crossed with a homozygous dominant dad. What is the probability that the offspring will have a recessive trait? What percentage of the offspring will be homozygous?
(there are no choice answers it's a written response. please help.)
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Answer:
A dominant trait can be described as a trait that suppresses the effect of a recessive trait. A recessive trait gets masked by a dominant trait.
In the scenario depicted in the question, there will be no chance that the offspring produced will carry the recessive trait of the mother. And there will be no chance that any of the offspring born will be homozygous for the trait. All of the offsprings produced from this cross will be heterozygous dominant.
Which unhealthy behaviors should you avoid?
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Answer:
Explanation:
Missing breakfast because:
breakfast is the most important meal of the day.
Not exercising:
If you don't exercise, you will become fat and a couch potato
Not drinking enough water:
You will become dehydrated
Eating late at night:
you will become really fat.
Which object has the same shape as a DNA molecule?
a ) pyramidal house
b ) rectangular TV screen
c )spiral staircase
d )hexagonal stop sign
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Answer: C - spiral staircase
Explanation:
Answer:
C a spiral staircase
Explanation:
Which is the reproductive method of prokaryotes?
Question 18 options:
binary fission
cell apoptosis
cytokinesis
mitosis
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Answer:
Prokaryotic cells reproduce by a process that is called binary fission.
Explanation:
The DNA in such cells is contained in a single circular chromosome called a plasmid within the cytoplasm. The reproductive process starts with the replication of the chromosome.
Answer:Prokaryotic cells reproduce by a process called binary fission.
Explanation:
these cells contain a single circular chromosome called a plasmid within the cytoplasm so,the reproductive process starts with the replication of the chromosome.
your body is composed of Microscopic cells that are visible all the time?
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Your body is composed of microscopic cells that are visible all the time ?True or false
Answer:Our body is composed of many microscopic cells. They are visible as a whole, but not individually. And all cells are not visible from outside. So the given statement is false.
Explanation:Cells are defined as structural and functional unit of a living organism. Cells are of various shapes and sizes. A squamous epithelium cell is flat whereas a neuron is upto 1 meter in length. Cells of bronchus have projections called cilia whereas cells of small intestine have microvilli on their surface.
Our skin is formed of epithelial cells which are seen as a whole with our naked eyes. But individual structures of them are very small. This is why, human cells are microscopic in structure and not individually seen with naked eyes.
Which statement describing the cells in a body system is correct?
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Answer:
some cells in the system may be different from the other cells in the system but all cells are coordinated and work together
Explanation:
The initial structural and functional entity of an organism is called a cell. They are essential for survival as it acts as the core for various processes.
The correct statement about the cell is:
Some cells in the organism may vary from other cells in the body, but all cells are harmonized and operate together.
This can be explained as:
The organism is made up of many types of cells that differ in functions and processes.The cells in a system may differ in structure and function but together they work to attain the result. and accomplish the results.For example cells of the digestive system have various cells but function together to perform the process of digestion.Therefore, cells work coordinately to perform functions in the system.
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Which biome has multistory communities?
O
A. Taiga
O
B. Tropical rain forest
O
C. Temperate grassland
O
D. Desert
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Answer: B. Tropical rain forest
O
Explanation: The climate and biodiversity of one of Earth's most diverse and iconic biomes. the tropical rain forest. The tropical rain forest biome has four main characteristics: very high annual rainfall, high average temperatures, nutrient-poor soil, and high levels of biodiversity
salinity notes biology
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Answer:
Salinity is the saltiness or dissolved inorganic salt content of a body of water. Substances that are dissolved in water are usually called solutes. The typical seawater has a salinity of 35 ppt or 35‰. The average density of seawater at the surface is 1.025g/ml
Explanation:
Salinity is the measure of dissolved salts in water, influencing both marine and terrestrial ecosystems. Organisms have adapted to various salinity levels, with some thriving in saline habitats by adjusting their internal solute concentrations. Biological processes and inputs from rivers affect oceanic salinity, making it crucial to measure accurately.
Salinity in BiologySalinity refers to the total amount of dissolved materials, usually salts, in seawater, expressed in grams per kilogram of water. It is a dimensionless quantity because it is a ratio and does not have units. The average salinity of seawater is about 3.4%, while the salinity of blood and other body fluids in animals is around 0.8%. This difference in salinity can be explained by the adaptation of organisms that moved from sea environments to land.
Saline habitats, which have lower water purity, often exclude most life forms due to water loss through diffusion, leading to decreased internal water content. Organisms that thrive in such environments usually have higher solute concentrations in their cytosol to cope with the osmotic stress.
Biological Control of Oceanic SalinityApproximately half of the earth's biomass resides in the sea, with a significant portion consisting of diatoms and other organisms that create silica skeletons. Upon death, these organisms sink and annually contribute about 300 million tons of silica to sedimentary rocks. This process helps maintain the undersaturation of silica in the upper sea levels and influences the salinity levels.
Moreover, inputs of salts into the sea from rivers and hydrothermal activity at oceanic ridges increase salinity. The cells in most organisms maintain lower intracellular salinity (around 1%) to avoid damage from high salt concentrations, which can denature proteins and disrupt cell membrane integrity.
Salinity definitions have evolved to ensure accurate measurements. Initially based on chlorinity, salinity is now defined by more precise methodologies, making it easier to measure and understand its impact on marine and terrestrial life.
Which are examples of how technology has advanced scientific understanding? Check all that apply.
1. using hot water to sterilize medical equipment
2. transplanting a human organ into another individual
3. inserting genes from one sheep into another cell to make a clone
4. understanding the different structures that make up a cell
5. examining microorganisms from the deepest parts of the ocean
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Answer:
2. transplanting a human organ into another individual
3. inserting genes from one sheep into another cell to make a clone
Explanation:
The advancement of technology has allowed several phenomena to be observed and tested, promoting a rapid advance of scientific knowledge and improving our lives in several different ways.
It would be impossible for scientific knowledge to reach that point that we know today without the advancement of technology allowing this.
Two great examples of how this happened are the possibility of transplanting a human organ into another individual and the possibility of inserting genes from a sheep into another cell to form a clone. The advanced technology allowed several equipments to be created allowing several studies to be carried out, making the two examples above a real fact in our universe.
I need some help in this area
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Answer:
The correct option is B) Nutrients
Explanation:
The availability of nutrients is very essential for a producer to survive. If nutrients will not be available, then the plant will not be able to carry out the essential processes which are required for its healthy living. The primary producers like plants take up nutrients from the soil.
Although, temperature and altitude also have an effect on the primary productivity but they can maintain homeostasis and hence these features will not affect that plant as much as the availability of nutrients.
The combination of mitotic cyclin with CDK signals the __________.
Question 17 options:
beginning of cell mitosis.
completion of cytokinesis.
growth of a cancer cell.
start of the cell cycle.
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Answer:
The correct answer is beginning of cell mitosis.
Explanation:
Cyclins are cell cycle regulatory protein which regulates the catalytic activity of cyclin dependent protein kinase or CDK.From the name cyclin dependent protein kinase it can be concluded that CDK helps in the phosphorylation of key proteins of cell cycle.
The combination of cyclin with CDK helps in the progression of cell from one phase to another.
Such as cyclin A CDK 2 helps also called G1 cyclin CDK helps in progression of cell from G1 to S phase whereas Cyclin B CDK 1 or M cyclin CDK helps in beginning of mitosis phase or M phase of the regulated cell.
polar bears wonder the ice looking for cent of sales once they find a seal they will attack and eat it what is the symbiotic relationship in this situation
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The symbiotic relationship in this situation is: Predation
Explanation:Symbiosis or Symbiotic relationship is the relationship or interaction between two biological creatures. These interactions are essential to keep a balance in the ecosystem. Predation is one of the types of symbiotic relationship in which one biological creature preys on the other.
In predation, one biological creature benefits from another while the other is harmed or most likely killed in the process. The predator remains less wounded or completely unharmed depending on the type of prey it is. Hence, we can say that the symbiotic relationship in this situation where the polar bear his hunting and capturing a seal for food is Predation. The polar bear gets its food while the seal is killed for it.
(c) Describe the relationship between the concentration of glucose in the culture medium and
the ATP concentration in the cells.
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The details were missing but I managed to found from another source.
Answer:
According to the table attached, no correlation exists between the concentration of glucose in the culture medium and the ATP concentration in the cells.
Explanation:
The glucose is present at two concentration levels in the culture medium, i.e. 1.5 mM and 25 mM. There were three replicates of glucose concentration at different oxygen concentrations. Despite the same glucose concentration in the culture medium, the ATP concentration in the cell increased. This was observed at both concentrations of glucose. So, the presence of glucose might have been necessary for the ATP production but oxygen was playing a direct role in ATP production. To draw a better conclusion, more information on other parameters is necessary.
The concentration of glucose in a culture medium is directly proportional to ATP concentration in cells. More glucose in the medium leads to more ATP in cells, while less glucose in the medium leads to less ATP in cells.
Explanation:The relationship between the concentration of glucose in a culture medium and the ATP concentration in cells is directly proportional. Glucose is the primary source of energy for cells and is metabolized during cellular respiration to produce ATP, which is the main energy currency within the cell.
When the concentration of glucose in the culture medium increases, more glucose is available to the cells, leading to more glucose being used in cellular respiration. As a result, the production of ATP within cells also increases. Therefore, the ATP concentration in cells can be increased by increasing the glucose concentration in the culture medium.
Conversely, if the concentration of glucose in the culture medium is lowered, less glucose is available to the cells, thereby reducing the cellular production of ATP. So, the concentration of glucose in the culture medium directly affects the ATP concentration within the cells.
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The appearance of banded iron layers in the rock record between 1.08 and 3.8 billion years ago reflect the alteration of oxygen-rich and oxygen-poor conditions in the ocean at that time.
True or False
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The appearance of banded iron layers in the rock record between 1.08 and 3.8 billion years ago reflect the alteration of oxygen-rich and oxygen-poor conditions in the ocean at that time is True.
Explanation:
The banded iron formation of the rock is directly related with the atmospheric oxygen content of that time. The thorough study by the scientists revealed an interesting result. The study showed that about 3 billion years ago, in Canada, there were no oxygen in atmosphere or ocean as well.
This resulted in the increase of the photosynthesizing organisms. The chemicals released from the organisms reacted to the iron of the ocean to deposit iron oxide layer on rocks to form these layers.
"A single-celled organism extends its
cytoplasm around its desired particle and
brings the particle inside of itself.
Essentially, the cell is consuming this
particle."
Which term below means "cell eating"?
A. phagocytosis
B. pinocytosis
C. exocytosis
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Answer:
A single cell organism extends its cytoplasm around its desired particle and bring the particle inside of itself. The cell consuming the particle this 'cell eating' is known as PHAGOCYTOSIS
Explanation:
Single celled organism amoeba don't have well developed digestion system as higher animals. They use their cytoplasm for these functions to perform.
PHAGOCYTOSIS- By this process some cells eat/engulf their food or required particle. When any food particle is present near the amoeba. amoeba extends its plasma membrane with cytoplasm around the particle and trap the particle in a new vacuole. For digestion lysosomes fused with the vacuole containing food particle and enzymes secreted to the vacuole and this way food particle digested.
PINOCYTOSIS-In pinocytosis cell wrap arround the liquid droplet instead of solid food particle. Cell extends its cytoplasm to engulf the liquid.
EXOCYTOSIS- This is the process to secrete the waste material out from the body after digestion. This is the excretion system of amoeba. In this process vesicles form containing waste of the cell and cytoplasm move in this way away from the vesicle and reached on the surface of membrane. In this way vesicles discharge on the outer membrane.
Griffith called the process he observed transformation because
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Answer:
Griffith called the process transformation because the harmless bacteria had been transformed. So the answer is 'C'.
Explanation:
Griffith performed an experiment on the mouse in which he worked on two different strains of streptococcus. One of the strain was capable of causing disease (virulent) III-S and the other was a rough strain which was non virulent type II-R. He injected different combinations of the strains. The heat killed smooth strain became non virulent.
The most important discovery he made was that when heat killed smooth strain and rough strain were introduced together in the mice and the mice died. It happened because the rough strain of bacteria transformed into virulent form as the DNA from heat killed smooth strain was imbibed by the rough strain which converted into virulent form.
the color of the fur is the genetic combination of alleles that determine the fur color is called the
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Answer:
Phenotype
Explanation:
The physical trait which is the color of the fur is associated with its genotype
Answer:
The color of the fur is the ✔ phenotype
The genetic combination of alleles that determine the fur color is called the
✔ genotype
Suppose that a mouse with black fur has both an allele for black fur and an allele for white fur (Bb). Based on this information, you can conclude that the dominant allele must be for ✔ black fur and the recessive allele must be for
✔ white fur.
For this lab, assume that the allele for black fur is dominant. This allele’s symbol is ✔ B
The allele for white fur is recessive. This allele’s symbol is ✔ b
Explanation:
right on edg..
What makes up an atom?
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Answer:
Electrons, protons, and Neutrons
Explanation:
Neutrons-Neutral charge
Protons-Positive charge
Electrons-Negative charge
Keep in mind that Protons and neutrons are found in the nucleus of the atom, while electrons are found in the electron cloud.
Both protons and neutrons have a mass of 1, while electrons have no mass.
B. Organisms most "it" for their environment will survive and e
26. Which of the following was most similar to the first living things on Earth?
A. Bacteria
B. Fish
C. Dinosaurs
D. Sponges
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Option A. Bacteria.
Explanation:It is presumed that, over millions of years of evolution, abiotic molecules evolved into the self-replicating molecules by means of natural selection. Cyanobacteria, or blue-green algae is a bacteria which was one of the oldest fossils found on earth. These microbes conduct photosynthesis: using sun light, water and carbon dioxide to produce carbohydrates and oxygen.Cynobacteria played a major role in forming oxygenated atmosphere. The first living things on the planet Earths was single-celled micro-organisms which lack a well defined cell nucleus were known as prokaryotes, and bacteria belongs to prokaryotes ans hence among given options bacteria matches the most for the first life form on earth.Result: Among the given choices bacteria was most similar to first living things on earth.
When sugar is "burned" inside a living organism, this requires what?
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Answer:
Breaking down of sugar in living organism requires Oxygen gas.
Explanation:
The gas oxygen is important to conduct different functions in living organism. For breaking sugar inside the living organisms oxygen is needed, this is the process of the cellular respiration. The body cell breaks sugar with the help of oxygen gas in this process. As a result of this process, energy is produced along with the carbon dioxide. This energy produced in this process is restored by the body for the future use of the cell.
The osprey is a bird of prey that eats almost nothing but fish such as trout. Whirling disease is a deadly threat to many fish, especially certain kinds of trout. When whirling disease kills fish in an ecosystem, there is less energy available to ________ and more energy available to _______ than there was before. A. decomposers; ospreys B. trout; ospreys C. trout; decomposers D. ospreys; decomposers
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Answer:
D
Explanation:
ospreys decomposers
A scientist successfully creates a bacterium with a recombinant plasmid for producing Insulin; however, one bacterium can only create a tiny amount of Insulin. What process should be used next?
A. Putting the bacterium into a fermenter.
B. Putting the bacterium through a mass spectrometer.
C. Culturing the bacterium in a petri dish.
D. Injection of viral DNA by a bacteriophage.
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Answer:
B. Putting the bacterium through a mass spectrometer.
Explanation:
FOR OBSERVATION AND TO CHECK THE RECOMBINANT DNA PROCESS WE HAVE TO THE OBSERVE THE REPLICATION PROCESS OF BACTERIA.
The process that should be used next, putting the bacterium through a mass spectrometer. The correct option is B.
What is a bacterium?A bacterium is a single form of bacteria. Bacteria is a prokaryotic organism. It is a unicellular and a microorganism. Bacteria are currently used in growing specific genes by growing them in and the genes are then transferred to the needed place.
A mass spectrometer is an instrument used to measure the mass to charge of the samples.
Thus, the correct option is B. Putting the bacterium through a mass spectrometer.
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A karyotype is an image of an organism's genes. An example is shown below.
Human karyotype
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By grouping images of a fetus' homologous pairs together and arranging them by shape and size, scientists can easily see whether
the baby has
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Answer:
Down syndrome, which results from having the wrong number of chromosomes
Explanation:
Down's syndrome is a specific type of genetic defect in which a person has three copies of the twenty-first chromosome. Scientists can now determine whether a fetus has the extra chromosome—and thus Down's Syndrome—by creating a karyotype like the one pictured here.
Screening for genetic diseases that involve mutations in the construction of the genes instead of the number of genes may not be as straightforward.
Which statement best represents how structure relates to function?
A horse's mane is often black.
Some insects live longer than others.
Many tropical birds can be taught to speak.
Great white sharks have sharp serrated teeth for tearing into their prey.
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Answer:
The correct answer is 'D'. Great white sharks have sharp serrated teeth for tearing into their prey.
Explanation:
Living organisms inhabit different habitats. They possess unique structures which help them perform specific functions. They maybe adapted or they are born with it. Sharks are carnivorous animals who feed on other animals. They have sharp pointy teeth which helps them to tear the flesh of their prey. Some other examples of animals are:
Fish have gills which help them breathe under water.Camel have humps which help them store water.Polar bears have thick fur which helps them to keep warm in winters.Listed in the Item Bank are some key terms and expressions associated with the categories seen in the Venn Diagram. To find out more information about items, some have more details available when you click on them. Drag and drop each item onto the proper area of the diagram. If an item describes more than one category, be sure to place it in the overlapping space.
ITEM BANK: Move to Bottom
CO2 + H2O reactantsChemical reactionConverts glucose to ATPDoes not require oxygenEnergy involvedFermentationGlucose produced by
autotrophsLight energy converted to
usable chemical energyMaximum ATP productionOxygen is a reactantUses oxygen to produce ATP
Photosynthesis
Aerobic respiration
Anaerobic respiration
Photosynthesis & Aerobic respiration
Photosynthesis & Anaerobic respiration
Aerobic respiration & Anaerobic respiration
All
Answers
Explanation:
Photosynthesis - CO2 + H2O reactants, Glucose produced by autotrophs, Light energy converted to usable chemical energyAll- Chemical reactionAerobic respiration- Maximum ATP production, Oxygen is a reactant, Uses oxygen to produce ATP Photosynthesis & Aerobic respiration- Does not require oxygen, Energy involvedAnaerobic respiration- FermentationAerobic respiration & Anaerobic respiration- Converts glucose to ATPPhotosynthesis produces glucose and O2 from inorganic CO2, light energy and water.
6CO2 + 6H20 + (energy) → C6H12O6 + 6O2
These end products, namely O2 and glucose are then used in respiration...
C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≈38 ATP
The CO2 and H2O produced as waste in respiration can then be incorporated at the beginning of photosynthesis. Thus the reactions are cyclic- they feed into each other.
Further Explanation:
Photosynthesis
Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released. This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. This occurs in the thykaloids, where pigment molecules like chlorophyll reside.
Occuring in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.
Additionally,
water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ions and produces molecules of the energy storage molecule ATP through an electron transport chain. This occurs in the thykaloids, where pigment molecules like chlorophyll reside. Later, in dark reactions, NADP and NADPH are used in the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules. These store energy in their bonds, which can be released in respiration in the mitochondria.Aerobic respiration
In respiration, energy is released when a phosphate group is removed from ATP; ATP is formed from the phosphorylation of ADP with an inorganic phosphate, Pi, which forms an unstable, high energy phosphate bond.
ADP + inorganic phosphate (Pi) + energy → ATP
Further Explanation:
In all eukaryotic cells mitochondria are small cellular organelles bound by membranes, these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is stored within the molecule ATP which is produced. Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’ or Citric acid cycle via the oxidization of pyruvate through the process of glycolysis in the cytoplasm).
This forms a gradient where there is a differential in the number of protons on either side of the membrane the protons flow or re-enter the matrix through the enzyme ATP synthase, which makes the energy storage molecules of ATP from the reduction of ADP. At the end of the electron transport, three molecules of oxygen accept electrons and protons to form molecules of water in a process called chemiosmosis.
Anaerobic respiration
Anaerobic respiration utilizes pyruvate from glycolysis in order to restore the NAD+ supply . Within cells, aerobic respiration may not occur due to several factors:
a lack of inorganic, final electron acceptors incomplete or lack of a complete electron transport system missing genes for enzymes within the Kreb's cycleThus, they utilize other means for the generation of energy in the form of ATP and to replenish NAD+ an oxidized form of NADH, the main electron carrier in glycolysis. Pyruvate is produced in the cytoplasm via glycolysis- it is also used as an electron acceptor in a process called fermentation.
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Answer: above is right awnser
Explanation:
Which of the following objects is the most likely to be magnetc?
Aa quartz bracelet
B. an iron pot
C. a leather purse
D. an aluminum can
Answers
Answer:
Your correct answer is B. An iron pot
Explanation:
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3. A student wants to copy an experiment that he read about.
What is the student doing?
A. Repetition
B. Replication
C. Oscillation
D. Both A & B
PLEASE PROVIDE AN EXPLANATION!!!!
Answers
The student is actually doing replication
Answer: Option B
Explanation:
A student reads about a particular experiment, gets inquisitive to learn more and hence tries to copy that particular experiment. This is called as replication as the student tries the same methodology and process adapted to perform the experiment. He tries to obtain the same result.
This result fascinates him giving assurance of the experiment. It also helps motivate trying different experiments. It also inspires him to make further researches.
The study of disease and the way it affects the body is called??
Answers
Answer: Pathology
Explanation:
Basically, pathology is a branch of medicine that deals with the study of diseases, its origin, its nature, its causes
Answer:
pathology
Explanation:
What is the scientific name of Seri Silk worm?
Answers
Bombyx mori is the name
Answer:
Bombyx mori
Explanation:
high frequency sound, you can see that the waves are _____________ together and the wavelength is ____________.
a. farther, longer
b. close, longer
c. close, short
d. farther, short
Answers
Answer:
The higher frequency sound, you can see that the waves are close together and the wavelength is short
Explanation:
This is because of the fact, the wavelength and the waves are inversely proportional to the frequency of sound. That's why, greater the frequency the more closer the waves and also the greater the frequency shorter the wavelength. Usually the speed of the sound may vary from medium to medium, but the frequency always remains constant as it is just like oscillation having frequency of original source. The frequency depends upon four factor like length, diameter, tension as well as density.