Questions: Which is a small, membrane-bound sac that functions in storage and transport within a cell? a vesicle a peroxisome the endoplasmic reticulum a ribosome

Which is a small, membrane-bound sac that functions in storage and transport within a cell? a vesicle a peroxisome the endoplasmic reticulum a ribosome
Transcript text: Which is a small, membrane-bound sac that functions in storage and transport within a cell? a vesicle a peroxisome the endoplasmic reticulum a ribosome
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Solution

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The answer is the first one: a vesicle.

Explanation for each option:

  1. A vesicle: This is a small, membrane-bound sac that functions in storage and transport within a cell. Vesicles can transport materials within the cell and also to and from the cell membrane.

  2. A peroxisome: This is a type of organelle that contains enzymes for breaking down fatty acids and detoxifying harmful substances. While it is membrane-bound, its primary function is not storage and transport.

  3. The endoplasmic reticulum (ER): This is a network of membranes within the cell that is involved in protein and lipid synthesis. It is not a small sac but rather an extensive network of tubules and sacs.

  4. A ribosome: This is a molecular machine that synthesizes proteins by translating messenger RNA. Ribosomes are not membrane-bound and do not function in storage and transport.

Summary: A vesicle is the correct answer because it is a small, membrane-bound sac that functions in storage and transport within a cell.

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