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Lostsunrise [7]
3 years ago
13

Which describes a protein? A. Forms an important part of cell membranes. B. Provides the greatest amount of energy per gram. C.

Plays an important role in chemical reactions in cells. D. Supports internal organs and insulates the body
Biology
1 answer:
tino4ka555 [31]3 years ago
4 0

Answer:

I would choose A for answer

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Which of the following molecular movements is due to diffusion or osmosis? a) The sodium-potassium pump pumps three sodium ions
MrMuchimi

Answer:

The correct answer is  b) When a plant cell is placed in concentrated salt water, water moves out of the cell.

Explanation:

Osmosis is the movement of solvent molecules from an area of less concentration of solute to high concentration of solute to equalize the concentration of both the side of the cell.

So water will move outside the cell when any cell will be placed in a concentrated salt water because the concentration of solute is high in salt water and low inside the cell.

Therefore when a plant cell is placed in salt water the osmosis of water takes place from inside to outside the cell. So the right answer is b.

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Evgen [1.6K]
The answer should be vulture
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marishachu [46]
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4 0
3 years ago
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Which best describes the storage of the genetic code?
Musya8 [376]

Answer:D

Explanation:

Because The genetic code by which DNA stores the genetic information. The functional segments of DNA which code for the transfer of genetic information are called genes

5 0
3 years ago
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Is the following statement true or false? Explain your
Marrrta [24]

Answer:

False.

Explanation:

Cell membrane is made of the lipids and proteins with the attached moieties of carbohydrates. The plasma membrane is the selectively permeable membrane that allows the diffusion of some selected particles only.

The transport along the cell membrane depends on the size and the hydrophobicity of the molecule. The size of oxygen is although higher than magnesium but to its highly hydrophobic nature it can easily pass through the plasma membrane as compared with the magnesium. The oxygen diffuses out faster than magnesium.

Thus, the answer is false.

8 0
3 years ago
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