Which is a function of the cell membrane? 1.performs photosynthesis
2.controls what enters and leaves the cell
3.produces proteins
4. provides energy to the cell

2

Explanation:

A cell membrane is a thin, flexible barrier that surrounds all cells; regulates what enters and leaves the cell

i think the answer would be d

cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.