Question

what is the primary difference between cytoplasm and cytosol? cytosol is the fluid part of the cytoplasm, which also includes the organelles. cytoplasm is the fluid, while cytosol includes the organelles. cytosol is the site of protein synthesis, while cytoplasm is not. cytoplasm is found only in plant cells, while cytosol is in animal cells.

Explanation:

• Analyze each option:
• Option 1: Cytosol is the liquid (fluid) component of the cytoplasm, and cytoplasm encompasses the cytosol plus all the organelles suspended within it. This matches the correct biological definitions.
• Option 2: Misdefines; cytoplasm includes cytosol and organelles, not the other way around.
• Option 3: Protein synthesis occurs at ribosomes (in cytosol or on ER), so this is incorrect.
• Option 4: Both cytoplasm and cytosol are present in plant and animal cells, so this is wrong.

Answer:

A. Cytosol is the fluid part of the cytoplasm, which also includes the organelles.