Question

What is the purpose and/or products of the following steps?

Question 1 options:

permits glycolysis to continue in anaerobic conditions    main source of electron carriers, with CO2 and H2O was waste products begin to break down 6C sugars for later steps, with a small energy payoff main source of ATP production, using NADH and FADH to provide fuel to create a proton gradient. continues to break down 3C sugars for later steps, with a small energy payoff

1. glycolysis 2. fermentation 3. pyruvate oxidation 4. citric acid cycle 5. electron transport chain

Answer 1

Answer =

Question 1 options:

permits glycolysis to continue in anaerobic conditions = 2.Fermentation.    main source of electron carriers, with CO2 and H2O was waste products = 4.Citric acid cycle. begin to break down 6C sugars for later steps, with a small energy payoff = 1. Glycolysis main source of ATP production, using NADH and FADH to provide fuel to create a proton gradient = Electron transport chain. continues to break down 3C sugars for later steps, with a small energy payoff = 3.Pyruvate oxidation

Explanation =

1.Glycolysis = is the anabolic processin which 6 carbon sugar that is glucose is converted into pyruvate.in this pathway there is pay off of 2 molecules ATP.

2.Fermentation = permits continue of glycolysis under anaerobic condition.after the glycolysis there is formation of pyruvate.it undergoes anaerobic fermentation to give ethanol and carbon dioxide.

3.Pyruvate oxidation = continues to break down 3C sugars for later steps, with a small energy payoff. pyruvate undergoes oxidation to gives acetyl CoA.

4.Citric acid cycle = acetyl CoA undergoes oxidation through citric acid cycle, yield main source of electron carriers such as NADH and FADH2. with carbon dioxide and water as byproducts.

5.Electron transport chain = is main source of ATP. there is generation of proton pump by flow of electrons. electrons are from NADH & FADH2.