Question

question 3
overall, four molecules of atp are produced by glycolysis. however, the products of glycolysis are two atp molecules, two pyruvate molecules, and two nadh molecules. the atp values do not match because
a. glucose metabolism is inefficient.
b. glucose phosphate is formed from fructose phosphate.
c. glucose is degraded to co2.
d. two atp are invested in the process of glycolysis.

question 4
what statement about the citric acid (krebs) cycle is incorrect?
a. it generates up to 28 atp moleduules.
b. it generates 2 co2 molecules.
c. it reduces 3 nad+ and one fad molecules.
d. it takes place in the mitochondrial matrix.

question 5
what statement about oxidative phosphorylation is incorrect?

Explanation:

Question 3:

In glycolysis, 4 ATP are produced in total but only 2 ATP are net - products because 2 ATP are used in the initial steps of the process.

Question 4:

The citric acid cycle generates up to 28 - 32 ATP in total considering the electron - transport chain and oxidative phosphorylation, but it does not generate 28 ATP directly. It generates 2 CO₂, reduces 3 NAD⁺ and 1 FAD, and occurs in the mitochondrial matrix.

Answer:

Question 3: D. two ATP are invested in the process of glycolysis.

Question 4: A. It generates up to 28 ATP molecules.