Which is not a component of cytosol?
fluid
cytoplasmic inclusions
cytoskeletal elements
the nucleus
The Correct Answer is D
A. fluid: The cytosol is the fluid portion of the cytoplasm.
B. cytoplasmic inclusions: These include stored nutrients or pigments suspended in the cytosol (e.g., glycogen granules).
C. cytoskeletal elements: Elements like microfilaments and microtubules are found in cytosol and support cell shape and movement.
D. the nucleus: The nucleus is a separate organelle, surrounded by its own membrane, and is not part of the cytosol.
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Related Questions
Correct Answer is A
Explanation
A. from Side A to Side B: Osmosis is the movement of water from a region of lower solute concentration (10%) to one of higher solute concentration (20%) to equalize the concentration.
B. from Side B to Side A: This would occur only if Side A had a higher solute concentration, which it doesn't.
C. there will be no movement of water: There’s a concentration gradient, so water will move.
D. water will move from B to A and A to B at equilibrium: Equilibrium implies equal concentrations, which is not the case initially.
Correct Answer is A
Explanation
A. cellulose: Humans lack the enzyme cellulase, so we cannot break down cellulose, a plant polysaccharide, for energy.
B. starch: Starch is digestible; humans have amylase to break it down into glucose.
C. glycogen: Glycogen is stored in human liver and muscle and is easily digested.
D. monosaccharides: These are already single sugar units, like glucose, and require no digestion.
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