All living cells

require chemical energy from photosynthesis to either directly or indirectly drive cell processes

use an organelle called a mitochondria to covert carbohydrates into cell energy

require chemical energy to directly drive cell processes

require chemosynthesis to either directly or indirectly drive cell processes

What happens as electrons move along the chain of molecules known as the electron transport chain? they gain energy, which causes atp molecules to lose phosphate groups. they gain energy, which causes h *ions to join with oxygen to produce water. they lose energy, which is then used by the cell to make atp. they lose energy, which is then used to break down atp.