Question

__________ is an intermediate electron acceptor for oxidations that occur in both glycolysis and in krebs cycle reactions

Answer 1

Answer: NADH

Explanation:

In both of the processes the electron acceptor is NADH which accepts the electrons. Glycolysis takes place in the cytoplasm of the cell.

In case of glycolysis the NADH accepts the electrons when the Glyceraldehydyde 3-phosphate is converted into 1, 3 Biphosphoglyceric acid. In the last step of the glycolysis 4 ATP molecules are produced.

Kreb's Cycle takes place in the mitochondria of the cell. During this process the electron acceptor is NADH. 3 molecules of NADH is produced during the process of citric acid cycle.

During the step when the isocitrate is converted into alphaketogluterate , alphaketogluterate is converted into succinyl co A and malate to oxaloacetate   produces 1 molecules of NADH at each step.