Which is a major difference between the cell membrane and the cell wall?

A. Cell membranes are living; cell walls are not living.

B. Cell membranes are found in human cells; cell walls are found in all other cells.

C. Cell membranes are found in animal and plant cells; cell walls are found only in plant cells.

D. Cell membranes are semipermeable; cell walls are selectively permeable.

C, since animal cells do not have cell walls but both animal and plant cells have cell membranes.

Answered by BeckaH | 2024-06-10

The main difference between the cell membrane and the cell wall is that cell membranes are found in both animal and plant cells, while cell walls are only found in plant cells, fungi, and some bacteria. Cell membranes are flexible and semi-permeable, preventing unwanted substances from entering the cell, while cell walls provide structural support and protection. Therefore, the correct answer is option C.
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Answered by BeckaH | 2024-12-26