Chapter 9: Carbohydrate Metabolism I

Question 1

What is the phase in glycolysis called where 2 molecules of ATP are used?

Answer 1

Investment phase

Question 2

What is the phase in glycolysis called where 4 molecules of ATP are generated?

Answer 2

Payoff phase

Question 3

Is gluconeogenesis anabolic or catabolic?

Answer 3

Anabolic

Synthesis of glucose from pyruvate

Question 4

Is glycolysis anabolic or catabolic?

Answer 4

Catabolic

Breakdown of glucose into pyruvate

Question 5

What is the most important reducing agent in the pentose phosphate pathway (PPP)?

Answer 5

NADPH

Question 6

Which are the irreversible rxns in glycolysis?

Answer 6

The three most favorable steps of glycolysis are: glucose→ G-6-P,
fructose-6-phosphate→ fructose 1,6-bisphosphate,
and phosphoenolpyruvate→ pyruvate.