AP BIOLOGY

Detailed explanation-1: -Two such electron carriers are NAD+ and FAD, which are both derived from B vitamins. The reduced forms of NAD+ and FAD, NADH and FADH2, respectively, are produced during earlier stages of cellular respiration (glycolysis, pyruvate oxidation, and the citric acid cycle).

Detailed explanation-2: -FADH2: High energy electron carrier used to transport electrons generated in Glycolysis and Krebs Cycle to the Electron Transport Chain. Glycolysis is the first of the three steps used to breakdown glucose to produce ATP.

Detailed explanation-3: -It is responsible for transporting electrons generated in glycolysis and kreb cycle to the electron transport chain. It also has a role in cellular respiration. It acts as an electron carrier & temporarily stores energy during cellular respiration.

Detailed explanation-4: -NADPH, FADH2, NADH are electron carrier molecules needed in the electron transport chains of photosynthesis and aerobic cellular respiration, respectively.

Detailed explanation-5: -A hydrogen carrier is an organic macromolecule that transports atoms of hydrogen from one place to another inside a cell or from cell to cell for use in various metabolical processes. Examples include NADPH, NADH, and FADH.