Question

1. which set of functions is 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 codes d. release of atp molecules, regulation of cell reproduction, food production

Explanation:

The cell membrane is involved in active transport (moving substances against a concentration gradient), recognizing chemical messages (such as hormones binding to receptors), and providing protection to the cell. Protein synthesis occurs in ribosomes, respiration in mitochondria, digestion of food molecules in lysosomes, enzyme production in the endoplasmic - reticulum and Golgi apparatus, DNA duplication in the nucleus, regulation of cell reproduction is a complex process involving multiple organelles and factors, and food production (photosynthesis) occurs in chloroplasts.

Answer:

B. active transport, recognition of chemical messages, protection