Question

1. Glycolysis is a metabolic process that converts
A. ATP to pyruvate.
B. pyruvate to ATP.
C. pyruvate to glucose.
D. glucose to pyruvate.


2. What molecule provides the energy to produce 6-carbon sugar diphosphate?
A. ATP
B. NADP
C. glucose
D. pyruvate


3. During glycolysis, which of the following sets of molecules are formed from one six-carbon sugar diphosphate?
A. 1 NADH, 1 ATP and 1 three-carbon pyruvate
B. 2 NADH, 2 ATP and 1 three-carbon pyruvate
C. 2 NADH, 2 ATP and 2 three-carbon pyruvate
D. 2 NADH, 4 ATP and 2 three-carbon pyruvate


4. What is the net yield of ATP during glycolysis?
A. 1 B. 2 C. 3 D. 4


5. What is pyruvate converted into during anaerobic respiration (in animals and bacteria)?
A. ATP
B. NADH
C. glucose
D. lactic acid

6. Cells obtain energy during cellular respiration by
A. reducing ATP.
B. oxidizing ATP.
C. reducing glucose.
D. oxidizing glucose.

7. What is removed from the substrate during oxidation?
A. a proton only
B. an electron only
C. both a proton and an electron

8. Which of the following reactions shows the interaction of the substrate and the coenzyme?
A. substrate + NAD+ → product + NADH
B. substrate + NAD+ → productH + NAD+
C. substrateH + NADH → product + NAD+
D. substrateH + NAD+ → product + NADH

9. During the reduction of NAD+, energy is transferred from
A. NAD+ to ATP
B. NADH to ATP
C. Glucose to NADH
D. NAD+ to the product

10. NADH serves as an electron carrier by
A. producing ATP.
B. acting as an enzyme.
C. oxidizing other molecules.
D. donating its hydrogen to other molecules.

Answer 1

1-d
2-a
3-d
4-d
5-d
6-c
7-a
8-a
9-b
10-d