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cricket20 [7]
3 years ago
6

Water molecules and small ions enter a cell through A) channels formed by integral proteins. B) peripheral proteins.C) lipid cha

nnels.D) peripheral carbohydrates. E) defects in the lipid layer of the membrane.
Biology
1 answer:
JulijaS [17]3 years ago
6 0

<u>Answer:</u> A) channels formed by integral proteins.

<em>Water molecules and small ions enter a cell through channels formed by integral proteins.</em>

<u>Explanation:</u>

A protein channel is the protein that helps in transporting the water molecule and small ions through the cell membrane. Aquaporins is the integral pore protein that is responsible for transporting the water molecule inside the cell membrane.

It only transport water molecule avoiding other ions. Due to the water transport job it is also called as the water channel in the cell.

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Explanation:

Air is a mixture of many gases. Different gases have their own percentage composition in air.

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Argon = 0.04%

Since the air in the container is made up of 322 particles, we can find the the number of nitrogen, oxygen and argon gases in it;

Number of Nitrogen gas = \frac{78}{100} x 322

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Number of oxygen gas = \frac{21}{100} x 322

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Number of argon gas = \frac{0.04}{100} x 322

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learn more:

Air, a mixture brainly.com/question/10897667

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