MUSCLE PHYSIOLOGY

PHYSIOLOGY

MUSCLE ENERGETICS GLYCOLYSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many molecules of NADH are produced during glycolysis?
A
2
B
4
C
6
D
8
Explanation: 

Detailed explanation-1: -Both aerobic and anaerobic creatures experience it. In glycolysis, 3-phosphoglyceraldehyde (PGAL) is oxidized to 1, 3-bisphosphoglycerate, which results in the production of 2 NADH molecules (BPGA).

Detailed explanation-2: -The second half of glycolysis involves phosphorylation without ATP investment (step 6) and produces two NADH and four ATP molecules per glucose.

Detailed explanation-3: -During glycolysis, glucose ultimately breaks down into pyruvate and energy; a total of 2 ATP is derived in the process (Glucose + 2 NAD+ + 2 ADP + 2 Pi–> 2 Pyruvate + 2 NADH + 2 H+ + 2 ATP + 2 H2O).

Detailed explanation-4: -During aerobic glycolysis, this NADH is transported by the malate aspartate shuttle or glycerol phosphate shuttle to the mitochondria where it is reoxidized to NAD+ while it participates in the electron transport chain to produce ATP[1][2].

Detailed explanation-5: -NADH produces the following amount of ATP: Glycolysis: By oxidative phosphorylation, 2 NADH generates 6 ATP. Reaction to Transition: 2 NADH generates 6 ATP.

There is 1 question to complete.