What roles do membrane proteins play in making the cell membrane selectively permeable

Answers

Answer 1

Answer: Protein channels cover cell membranes, they choose which molecules can enter and exit the cell. If the molecule is tiny enough to fit in these protein channels, it will be allowed to pass through. If not, the molecule needs to form a vesicle so it can easily go through and out the cell.

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Which organ system is responsible for transporting oxygen throughout the human body?A. digestive system B. respiratory system C. circulatory system D. excretory system
Assume that the blue section (D) of the chart stands for stocks and the red (A) for mutual funds. This would most likely represent the portfolio of a young investor middle-aged investor nearly-retired investor elderly investor 2 months agoReport Abuse
Explain the relationship between adaptation natural selection and evolution
The Great Pacific Garbage Patch will be difficult to physically clean up because _______.
In a balanced ecosystem, the number of______ is far greater than the number of________ .first blank: (producers, tertiary consumers, herbivores) second blank: (consumers, omnivores,secondary consumers)

Which of the following is not an example of energy transformations in an ecosystem? a. sunlight driving photosynthesis in plants b. herbivores feeding on plants c. predators feeding on herbivores d. none of the above Please select the best answer from the choices provided A B C D

Answers

Energy transformation is the process of transfer and conversion of energy from one species to another. None of the above is not an example of energy transformation. Thus, option D is correct.

What is energy transformation?

Energy transformation is the process in an ecosystem that includes the conversion of energy from one level to another in the food chain or the metabolic reactions.

Photosynthetic reactions under the sun, herbivores feeding on producers, and predators feeding on the primary consumers are examples of energy conversion as it is continuously passing the energy to another species in the ecosystem.

Therefore, none of the above is not an example of energy transformation.

Learn more about energy transformation here:

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Answer:

D. None of the above

Explanation:

Suppose that species A evolves and species B evolves in response to the changes in Species A. Species A then changes in response to the changes in Species B. This is an example of

Answers

The process by which two species evolve as a response to changes in one another over time is called, "coevolution" thus the correct answer is that it is an example of COEVOLUTION

Pyrolobus fumarii, an extreme thermophile, can survive at a temperature as high as 113°C. This microorganism could be categorized as which of the following?

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the answer is archaeabacteria

Which of the following if added to this sequenceA—G—A—T—G—C—G—A—G—T—T—A—C—G—G

might create an insertion mutation?

A.a fat molecule

B.a sugar molecule

C.a DNA molecule

D.an A, G, T, or C

Answers

D nucleotide insertions cause mutations

What do bacteria have in common with the cells of other living organisms

Answers

Answer:

Bacteria and other living cells have some universal features that are, they are present in all the living cells.

These features include:

Plasma membrane: The lipid bilayer which separates the cell from the external environment. It is present in all the living organism.

Cytoplasm: It is a gel-like substance present within the plasma membrane of the cell (excluding nucleus). It contains and supports all the cell organelles and cell parts.

Ribosome: It is a vesicular structure made up of protein and ribosomal RNA. It is the main site of protein synthesis in all the cells. Prokaryotes generally contain 70S ribosomes and eukaryotes generally contain 80S ribosomes.

Genetic material: All the living organisms contains genetic material (usually DNA) either confined in the nucleus or floating freely in the cytoplasm.

They have ribosomes.They contain cytoplasm.
Some things bacteria have in common with cells of other livingorganisms is they both have chromosomes, they both have organellesand a nucleus, and are alive.

This should help! :)

What is the general term for any carbohydrate monomer

Answers

Monosaccharide. 'mono' for 1 unit (hence it's a monomer) and 'saccharide' is another term for sugar, and sugars are the most simple carbohydrates.

Answer:

monosaccharide

Explanation:

took the test and passed

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Name four clastic sedimentary rocks and explain how these rocks form.

When a raw, shell-less egg was placed in sugar solution, the egg shrank. The egg was brought back to its original size by placing it in water. Which process does the experiment demonstrate? A) osmosis B) diffusion C) dehydration D) reverse osmosis

Which of the following organ systems controls the neuron synapses in the fight or flight response?Animals and humans respond to threats in various ways. This is the fight or flight response. Some animals will run while others freeze, fight, camouflage or play dead. When the brain receives messages from the sympathetic and parasympathetic systems through neurons, the body responds by increasing blood pressure, heart rate and blood flow to the muscular system. These responses increase muscle tension to provide the body with extra speed and strength as well as thicken the blood to prevent blood loss should injuries incur during the threatening encounter. Click on the correct answer(s) A Circulatory System B Skeletal System C Nervous System D Muscular System

Some animals can strategize, assess their environment, and cooperate with others to obtain food. true?false?