The correct answer is: C. a procedure that uses grapes left overnight in a high concentration of salt water
Osmosis is the passive process (no energy required) of solvent molecules movement through a selectively permeable membrane. The process is passive because the solvent (water) moves from the region of low solute concentration into a region of high solute concentration. This happens in order to equalize the solute concentrations on the two sides.
In the case of grapes, water will move from the grapes into the high salt surrounding water.
The procedure using grapes left in salt water demonstrates cellular osmosis by showing water migration out of the cells due to the hypertonic environment, resulting in decreased turgor pressure and grape size.
The procedure that would best demonstrate cellular osmosis is the one that involves grapes left overnight in a high concentration of salt water. When grapes, which are cells surrounded by semipermeable membranes, are placed in a hypertonic solution such as salt water, the water inside the grape cells will move out to the salt solution. This is due to osmosis, the diffusion of water from an area of lower solute concentration to an area of higher solute concentration across a semipermeable membrane. The grapes will lose turgor pressure as they become dehydrated, and their size and weight will decrease after being immersed in the hypertonic solution.
Which best statement best describes human eye color
Answer:
A polygenic trait that follows non-mendelian inheritance patterns.
Explanation:
Which of the following is not a principle of the cell theory
The complete question is:
Which of the following is NOT a principle of cell theory?
Cells are the basic units of life
All living things are made of cells
Very few cells are able to reproduce
All cells are produced from existing cells
Answer: Very few cells are able to reproduce
Explanation:
Cell theory is a globally accepted historic scientific theory which states that living organisms are made up of cells . They are the structural and functional unit of life.
All the new cells that is formed in the body is formed by the preexisting cells of the body.
The main point that only few cells are able to reproduce. This point was not mentioned in the cell theory.
Harold makes a very diagram to help him compare and contrast mitosis and meiosis
A. Forms diploid cells
B.creates an even number of cells
C.includes two rounds of cell division
D. Duplicates body cells
Answer:
Forms diploid cells
Explanation:
I TOOK THE TEST ON EDGE 2020 AND I GOT 100%
what can be the problem likely to be faced by a man who had a surgical removal of gall bladder?
Easy question. Please answer should include explanation.
8. A. Its size
None of the other options would change as a result of just cutting a cork into smaller pieces
9. A. The luggage will be lighter to carry
The weight of water can add up very quickly so when you remove almost 90% of water from a substance, you can substantially decrease the weight
10. A. behind him
The sun is shining on his back so his shadow is in front of him, but if he were to turn around his shadow would still be in the same place in relation to his body
How do the bases bond together? A bond with ____ G bonds with _____
"A" bonds with "T", and "G" bonds with "C" (A-T) (G-C)
In DNA, bases bond together to form complementary base pairs. These pairs are A-T and C-G, denoting that adenine (A) bonds with thymine (T), and cytosine (C) bonds with guanine (G). The bond between G (guanine) and C (cytosine) is stabilized by three hydrogen bonds.
Explanation:In biological terms, specifically in the context of DNA structure, bases bond together to form what are known as complementary base pairs. These occur due to hydrogen bonding. The bond formation depends on the type of base involved. The bases are represented by the letters A, C, G, and T, each representing a specific type of nucleotide: Adenine (A), Cytosine (C), Guanine (G), and Thymine (T).
The pairing is derived from the rule that adenine (A) always bonds with thymine (T), and cytosine (C) always bonds with guanine (G). These pairs, A-T and C-G, are known as complementary because of the bases' ability to bond with each other specifically. This preservation of order between bases ensures the correct genetic information is passed on during cell division (mitosis).
In the case of your question, G (guanine) bonds with C (cytosine). This specific base pairing, like all others in DNA, is stabilized by hydrogen bonds. Guanine and cytosine form three hydrogen bonds between them, contributing to the stability of the DNA structure.
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Select all that apply
Modern medicine made from plants include ___.
Aspirin
Cough syrup
Neosporin
Codeine
Ephedrine
Answer:
Explanation:The modern medicines made from plants that are included in the given options are:
1. Aspirin: Aspirin is derived from the bark of the willow tree. It is commonly used as a pain reliever and anti-inflammatory medication.
2. Codeine: Codeine is an opioid medication derived from the opium poppy. It is used as a pain reliever and cough suppressant.
3. Ephedrine: Ephedrine is obtained from the Ephedra sinica plant. It has been used in some medications for its stimulant and decongestant effects.
It's important to note that while the other options (cough syrup and Neosporin) may be commonly used medicines, they do not specifically come from plants. Cough syrup can be a combination of various ingredients, including synthetic compounds, while Neosporin is a topical antibiotic ointment containing synthetic antibiotics.
The release of water from the ___ of the cells cause the plant to wilt and droop. The ____ in the plants cells help it to maintain its structure during this period stress.
The first question can be
• cytoplasm
•lysosomes
•vacuoles
Second one can be
•cell membrane
•cell wall
• endoplasmic reticulum
Answer: Option 1) C."Vacuoles"
2) B. "Cell wall"
Explanation:
Vacuoles are large organelles in plant cells that are filled with fluid and function to maintain pressure in the cell. In hypertonic solutions, the fluid inside the vacuoles releases out due to high concentration of solute inside the cell and allows water to flow out of the cell, resulting into drooping of cells.
Cell wall is the outermost layer of plant cell that functions to protect and support the plant cell. Plant cell wall is rigid and made up of cellulose (fibers) that resist the pressure released from vacuoles and maintains the structure of the cell.
Hence the correct option are vacuoles and cell wall.
What would be the effect of a mutation in the coding region of the lactase gene?
Lactase refers to an enzyme that can dissociate lactose sugar into glucose and galactose. This enzyme plays an important role in the digestion of milk that comprises high lactose sugar. In case, if a mutation occurs in the gene codon of lactase, then two possibilities can take place. These are as follows:
1. Loss of mutation: In this case, the person becomes lactose intolerant because of mutation in lactase gene codon. Due to this, there is low mRNA expression and thus low production of the enzyme lactase. This is also known as lactase non-persistent phenotype.
2. Gain in mutation: In this case, the person gain an increase in mRNA expression of the lactase gene, thus more production of lactase takes place than usual. This kind of individual exhibits lactase persistent phenotype.
A mutation in the lactase gene could lead to changes in the structure and function of the lactase enzyme, affecting the organism's ability to process lactose. Depending on the type and location of the mutation, the effects can range from mild to severe, possibly causing diseases related to lactase deficiency.
Explanation:A mutation in the coding region of the lactase gene could have several potential effects, depending on the nature of the mutation. Mutations could include insertions, deletions or other changes in the DNA sequence that could alter the structure and function of the resulting protein. Such changes could increase the possibility of the protein having extra bends and loops, potentially altering its effectiveness in metabolizing lactose.
For example, in the case of E. coli, mutations in the lactase gene could disrupt the operon's regulation of lactose metabolism.
With a functioning lactase gene, when lactose is present, it triggers the transcription of genes that allow the bacterium to metabolize lactose. However, if the lactase gene were mutated, it could prevent this from happening, leaving the cell unable to process lactose as a food source.
Therefore, considering the potential range of effects, a mutation in the lactase gene could cause significant changes in an organism's ability to process lactose, and it could also cause diseases linked to either the lack of lactase or to structurally abnormal lactase proteins.
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Which of the following products is NOT made during interphase?
a) RNA
b) proteins
c) organelles
d) cell plate
answer would be D) Cell Plate
Can you please help me with 1-6?
1. Organisims that make their own food are called autotrophs. 2.Organisims that rely on a food source are called heterotrophs. 3. Plant cells and some alge contain chloroplasts to conduct photosythesis.4. Autotrophs get their energy from the sun to convert it into chemical energy. 5. The food making process is called photosynthesis. 6. Water and carbon dioxide are the raw materials for photosynthesis.
What is the basic building block of all plants and animals
The answer to this question is cells.
Cells is the basic building block to all plants and animals
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Luciferin is a molecule that, when broken down in fireflies, produces heat and light. The rate a which luciferin is broken down In cells is controlled by:
1. A carbohydrate
2. A simple sugar
3. An enzyme
4. A complex fat
HELP ME ASAP! I NEED THE ANSWER NOW PLZZZZ!!!!!! I DON'T UNDERSTAND THIS!
THIS IS REGIONS SCIENCE!
Answer:
Enzymes
Explanation:
Enzymes are the biocatalyst that serves to speed up the rate of chemical reactions by lowering down the required activation energy. They are proteins and are not used up during the reactions. Breakdown of luciferin is also regulated by the enzyme. Carbohydrates and fats serve as energy source mainly. Simple sugar is also a carbohydrate and serves as an energy source.
The visible light spectrum is usually said to consist of red orange yellow green blue indigo and violet all of these colors combined make
I think it will make the color black
Answer:
white light
Explanation:
White light is the name given to what the human eye sees when all the colors that make up the visible light spectrum are combined. The visible light spectrum is composed of red, orange, yellow, green, blue, indigo and violet light, and these colors combined produce white illumination.
When shining through a prism, the white lights are divided into colors separate from the visible light spectrum.
which landform represents the boundary between the land and an ocan or lake
A) coastline
B) delta
C) dune
D) glacier
First of all, a coast is where land ends and the sea/lake starts.
Therefore, the coastline, is the "border", or as you said it, the boundary between the continent and a sea or in some cases a lake.
Answer:
[tex]\boxed{\bf~A - Coastline}[/tex]
Hope it helped,
BioTeacher101
For aquatic animals, insects, and plants, they offer distinctive habitats. The Shackleton Coast in Antarctica is an example of an icy coast. The Skeleton Coast in Namibia is an example of a desert coast. Thus option A is correct.
What coastline landform represents the boundary?The patterned ground and ice-push barriers are examples of ice processes that have an impact on landforms in harsh temperatures, such as those found around the Arctic coast.
Understanding natural phenomena like weather and rising sea levels is made easier by coasts. Coasts are the first areas to flood during storms.
Coastal landforms are those landforms that are located along coasts and were produced by erosion, deposition, or both. These frequently entail a marine-terrestrial environment interaction of some kind.
Therefore, coastline landform represents the boundary between the land and an ocean or lake.
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If a person has type B blood
If a person has blood type B, that means you can only donate blood to blood types such as AB or B
If a person has O, that means it can donate blood to all blood types
If its A, they can donate blood to blood types of AB and A
If its AB it can donate to blood types of A, B, and AB
Final answer:
A person with type B blood has B antigens on their erythrocytes and produces anti-A antibodies, meaning they can receive blood from type B or O donors and can donate to type B or AB recipients. Blood type AB individuals can receive from any type, while type O can donate to any type.
Explanation:
If a person has type B blood, it means their erythrocytes (red blood cells) have B antigens on the membrane surface. Consequently, these individuals naturally produce preformed anti-A antibodies in their plasma. These antibodies would cause a serious immune response if the person received blood with A antigens during a transfusion.
According to blood donor compatibility, a person with type B blood can receive blood from others with type B or the universal donor type O. They can donate to individuals with type B or AB. The presence of anti-A antibodies in someone with type B blood precludes them from receiving type A or type AB blood as it would lead to agglutination (clumping) of the red blood cells.
It's worth noting that blood type AB individuals have both A and B antigens and no preformed antibodies, making them the universal acceptors, while those with blood type O have neither A nor B antigens and are considered the universal donors. The distribution of people with type B blood arriving at a blood drive roughly follows the Poisson distribution, with about one out of nine people in the United States having this blood type.
Gina is scuba diving when she notices a large fish glide over her. It has a flattened body and she notices gills on its underside. Which taxonomic group does the fish belong to? A. Selachii B. Batoidea C. Sarcopterygii D. Actinopterygii
Your answer is A
Selachii to be a class or subclass that contains all the modern sharks and rays
Gina described a manta ray
Answer:
The correct answer is B. Batoidea
Explanation:
Batoidea is an order of cartilaginous fish which are commonly known as rays. Rays are morphologically different from sharks as their body is flattened and disk-like with very large pectoral fins.
In rays, mouth and gills are present on the underside of the body. They have five gills that are used for the diffusion of gases and are present on its ventral side but in sharks, gills are present on the side of their head.
Their flattened body helps them to hide in the sand of the ocean floor which prevents them to become prey to large predators like sharks and killer whales. Therefore the right answer is B. Batoidea
The shoot tips effect of keeping the lateral buds dormant is termed
Answer:- Apical dominance
Explanation:-
Apical dominance occurs when the shoot tip inhibits the growth of the lateral bud so that the plant grows in an upward direction.This is important for the plant so that it can grow in the direction of sunlight to get more energy for the process of photosynthesis.This process can occur because the shoot tip has the apical bud. The apical bud produces a hormone called as auxin, which is responsible for inhibiting the growth of lateral buds.It is observed that if the apical bud is removed then the concentration of auxin lowers down and thus, the lateral buds can now grow and loose their dormancy.Thus, the shoot tips effect of keeping the lateral buds dormant is called as apical dominance.
What is compost? Plz answer quickly
The Vin diagram compare is aerobic respiration and anaerobic respiration which statement should be categorized only in the aerobic section of the Venn diagram
A) occurs in the cytoplasm
B) produces water
C) requires no oxygen
D) is performance by yeast
Aerobic respiration is is the process that takes place in the presence of oxygen. In this oxygen is used to break down the amino acids, fatty acids and glucose and is the main process to generate ATP in the body.
Aerobic respiration does not occur in cytoplasm, it occurs in mitochondria. In cytoplasm. Anaerobic respiration takes place in cellular respiration hence in cytoplasm anaerobic respiration takes place.
Aerobic respiration produces water and carbon dioxide as the end product. Cells which undergo aerobic respiration can produce nearly 6 molecules of carbon dioxide, 6 molecules of water and nearly 30 molecules ATP.
Aerobic respiration itself is a process that takes place in the presence of oxygen. It uses oxygen to break down glucose, fatty acids and amino acids and helps to generate ATP which is the main way to generate ATP to muscles.
Aerobic respiration is performed by mitochondria and not yeast. In yeast fermentation takes place which is a form of anaerobic respiration. Hence yeast undergo fermentation and not aerobic respiration.
Therefore the answer is B aerobic respiration produces water and carbon dioxide as the end products.
Answer:
The Venn diagram compares aerobic respiration and anaerobic respiration.
A Venn diagram is shown. One circle is labeled aerobic and the other circle is labeled anaerobic.
Which statement should be categorized only in the aerobic section of the Venn diagram?
occurs in the cytoplasm
produces water **
requires no oxygen
is performed by yeast
Explanation:
which on the folllowing cell parts act as a boundary and controls what enters and leaves the cell?
I think that its the cell membrane.
what would be a good title for my poster of a cell membrane?
A good title would be "The Cell Membrane: _____" and then insert what type of cell it is in the blank.
A suitable title for a poster of a cell membrane could be The Dynamic Barrier: Exploring the Cell Membrane.
The cell membrane, also known as the plasma membrane, is a dynamic and selective barrier that envelops the cell's contents. It plays a crucial role in maintaining the cell's integrity and controlling the movement of substances in and out of the cell. A title like The Dynamic Barrier: Exploring the Cell Membrane captures the essence of the cell membrane's function and the exploratory nature of the poster, which might delve into the structure, components, and processes associated with the cell membrane. This title is both informative and engaging, inviting viewers to learn more about the cell membrane's dynamic properties and its fundamental role in cellular biology.
I bet you have watched astronauts in the space station on television or on your computer. We see them; we hear them speak. How are the voices of astronauts transmitted back to Earth? A) sound waves B) transverse waves C) mechanical waves D) longitudinal waves
The voices of astronauts in the space station are transmitted back to Earth using sound waves.
How Sound waves are produced?Sound waves are produced by the vibration or movement of an object, which creates changes in air pressure.
Sound waves are a type of mechanical wave that is created by the vibration of an object, such as the vocal cords of a person speaking. In the case of astronauts in the space station, their voices are picked up by microphones and converted into electrical signals that are transmitted to Earth.
These electrical signals are then converted back into sound waves that can be heard by people on Earth.
Transverse waves and longitudinal waves are other types of waves, but they are not used for transmitting sound in this context. Transverse waves occur when the particles of a medium vibrate perpendicular to the direction of the wave, while longitudinal waves occur when the particles vibrate parallel to the direction of the wave.
Both of these types of waves can be used for other purposes, such as transmitting information or energy, but they are not used for transmitting the voices of astronauts in the space station.
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Final answer:
Astronauts' voices are transmitted to Earth using electromagnetic waves, specifically radio waves, which are a type of transverse wave that can travel through the vacuum of space.
Explanation:
The voices of astronauts are transmitted back to Earth using electromagnetic waves. While sound cannot travel through the vacuum of space as it requires a medium, electromagnetic waves can. Specifically, astronauts use radio waves to communicate. These are a type of transverse wave that can travel through the vacuum of space. The astronaut's voice is converted into a radio signal that is transmitted via radio waves.
Therefore, the correct answer to the student's question is B) transverse waves. Examples of other electromagnetic waves include light, microwaves, and X-rays. These are all transverse waves and do not require a medium to travel, differentiating them from sound waves, which are mechanical and longitudinal waves but cannot travel through the vacuum of space.
In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying?
A) They study alleles that contain chromosomes, which are RNA.
B) They study alleles that contain genes, which are chromosomes.
C) They study chromosomes that contain genes, which are DNA segments.
The answer should be C because the DNA in the genes is what causes genetic mutations. The sequence differs from what is found in most people. Mutations range in size; they can affect anywhere from a single DNA building block (base pair) to a large segment of a chromosome that includes multiple genes.
Answer: option C They study chromosomes that contain genes, which are DNA segments.
Explanation: chromosomes carry genetic information which is stored in genes. Genes are DNA segments which are located on the chromosomes. Genes codes for a certain protein which performs a particular function.
Change in the original DNA sequence leads to genetic mutations. So in order to study genetic mutations, scientists must study genetic material.
A scientist wants to insert a new gene into a bacterium. What is the first step in this process?
a) bonding the gene into a plasmid with enzymes.
b) placing the changed plasmid into bacteria.
c) inserting the gene into a plasmid.
d) cutting the gene out of DNA with enzymes.
cutting the gene out of the DNA with enzymes
Answer:
Option D, cutting the gene out of DNA with enzymes
Explanation:
The first step in inserting a new gene into a bacterium is the separation of gene (to be inserted) from the parent cell DNA
Restriction enzyme (RE) is a DNA cutting enzyme which is used to cut this DNA. RE identifies a specific target sequence with in a DNA and then cut the DNA into two pieces either at or near the site.
For example - Human insulin gene is separated from the DNA of human and then inserted into plasmid of bacteria.
What is the source of energy in our ecosystem?
In our ecosystem, the (1) is the source of all energy. In terms of the ecological pyramid, (2) of the energy is passed from level to the next level.
1.) a.) air
b.) sun
c.) water
2.) a.) 10%
b.) 50%
c.) 100%
Answer:
1. B
2. A
Explanation:
The energy from the sun is tapped by the autrotrophs through photosynthesis. These autotrophs are then preyed on by higher organisms in the food chain such as primary consumers - like rabbits. Primary consumers are then preyed on by secondary consumers like cheetars. Secondary consumers are then preyed on by tertiary consumers like vultures. Therefore, there is a transfer of energy from the sun up the food chain/web.
Without autrotrophs most organisms in the the food chain would not exist. This is why autotrophs are at the bottom of the energy pyramid. There are, however, inefficiencies in the transfer of this energy up the food chain. Only 10% of the energy is passed to the next upper level (and turned into biomass) because most of the energy is lost mostly in form of heat.
Answer:
Sun (B)
10% (A)
Explanation:
the difference between the rough eneoppasmic reticulum anr the smooth endoplasmic reticulum is that
The smooth endoplasmic reticulum is responsible for the synthesizing of Carbohydrates and lipids and does NOT have attached ribosomes
The rough Endoplasmic reticulum is responsible for synthesizing proteins and DOES have attached ribosomes
The rough endoplasmic reticulum (RER) is studded with ribosomes and synthesizes proteins. The smooth endoplasmic reticulum (SER), on the other hand, is involved in lipid biosynthesis, carbohydrate metabolism, and detoxification of toxins.
Explanation:The endoplasmic reticulum exists in two forms: the rough endoplasmic reticulum (RER) and the smooth endoplasmic reticulum (SER). The RER is named so because it's studded with ribosomes, which are sites for protein synthesis. It appears bumpy under the microscope. These ribosomes synthesize proteins that are then destined for the cell membrane or other functions.
In contrast, the SER lacks these ribosomes and appears 'smooth.' It performs a different set of functions in the cell. The SER plays key roles in lipid biosynthesis, carbohydrate metabolism, and the detoxification of toxic compounds within the cell.
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The formation of igneous rock is most directly related to which of the following geologic events?
Igneous rock formation is most closely associated with volcanic events and the cooling and solidification of magma, either on the Earth's surface or underground.
The formation of igneous rock is most directly related to volcanic eruptions and magma intrusion into the Earth's crust. Igneous rocks form either on the Earth's surface as a result of volcanic activity, where magma exits a volcano and cools quickly to form rocks like basalt, or beneath the surface where magma cools slowly to form intrusive rocks such as granite. Most magmas that form igneous rocks originate at plate boundaries and hotspots due to mechanisms like pressure release, an increase in temperature, or the addition of volatiles which decrease the melting temperature of rocks.
someone please help me
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Pistol Shrimps and Gobies Depend on each other for their shelter and protection and they have a beneficial relationship with each other what’s this symbiotic Relation called
Answer:
Mutualism
Explanation:
The term interspecific cooperation or Mutualism refers to the phenomenon when two organisms of different specie co-exist in such a way that both get benefit from each other due to their some characteristic features.
For example: in the example mentioned in question, Pistol Shrimps and Gobies co exist in a mutualistic relationship.
What happens that shrimp not only builds but also maintains a burrow as a habitat in which both shrimp and Gobies live and in turn Gobies protects the shrimp from the attack of predators.
There are several examples of mutualistic associations between living organisms and it it is one of the best types of symbiotic association in which no organism gets harm.
Hope it help!
My answer is correct!!!