Which functions are directly controlled by the cell membrane? A
protein synthesis, respiration, digestion of food molecules
B
active transport, recognition of chemical messages, protection
C
enzyme production, elimination of large molecules, duplication of DNA
D
release of ATP molecules, regulation of cell reproduction, food production

B

Explanation: the answer is b because The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell

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