OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Why are diffusion and osmosis important to cells?
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It allows them to take in materials/substances without using energy.
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It allows them to reproduce.
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It allows them to absorb sunlight.
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It allows cells to use all energy.
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Explanation:
Detailed explanation-1: -In humans, diffusion helps move substances in and out of cells. Lungs and Gas: During the respiratory process, oxygen and carbon dioxide gases reach to cells and are removed from cells respectively by diffusion.
Detailed explanation-2: -The principle of osmosis regulates the passage of water into and out of cells of all living organisms. It helps to maintain shape and size of animal cells. The volume of protoplasm is maintained constant by the process of osmosis. Absorption of water by intestinal cells takes place through osmosis.
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