Question

11) Identify the key processes cells utilize to harness energy from food- include both anaerobic processes as well as aerobic processes.

Answer 1

Ans:

Glycolysis, pyruvate oxidation, citric acid cycle, oxidative phosphorylation and electron transport chain in aerobic and glycolysis and fermentation in anaerobic key processes cells utilize to harness energy from food. Glycolysis is the process where glucose is breakdown to produce two pyruvate, 2 NADH and 2 ATP molecules. Fermentation is the anerobic process that utilizes pyruvate and produces lactic acid, ethyl alcohol and NADH. Pyruvate oxidation, citric acid cycle, oxidative phosphorylation and electron transport chain are the aerobic processes that occur in mitochondria and utilizes two pyruvate and produces ATP (NADH and FADH2 are converted into ATP). All this processes are produced energy in the form of ATP from food like glucose that utilizes by the cell.