AP BIOLOGY

Detailed explanation-1: -Answer: Glycolysis is the process that receives a supply of NAD+ ions from the fermentation.

Detailed explanation-2: -In the process of fermentation the NADH + H+ from glycolysis will be recycled back to NAD+ so that glycolysis can continue. In the process of glycolysis, NAD+ is reduced to form NADH + H+. If NAD+ is not present, glycolysis will not be able to continue.

Detailed explanation-3: -In order to Produce any NAD+ at all, the Cell must use anaerobic respiration. The cell takes Pyruvate with NADH and ferments it into an alcohol or lactic acid. As a result NAD+ is formed allowing for Glycolysis to continue to produce some ATP. Glycolysis uses 2 ATP and produces 4 ATP per Glucose molecule.

Detailed explanation-4: -It is an electron carrier used to temporarily store energy during cellular respiration. This is found in two forms in cells: NAD+ is an oxidizing agent – it accepts electrons from other molecules and becomes reduced. This reaction forms NADH, which can then be used as a reducing agent to donate electrons.

Detailed explanation-5: -As glucose is being broken down, in both cellular respiration and fermentation, there are high energy electrons that are being created. These high energy electrons are needed later on in the reaction. They need a carrier molecule to take them to their final destination. That carrier molecule is NAD+.