Biology 9 Chapter 7 Bioenergetics-10

Biology 9 Chapter 7 Bioenergetics-10

1. WWhich one of the following is formed during Krebs cycle?

a) FADH#2
b) All of these
c) ATP
d) NADH

2. BBefore entering into Krebs cycle, pyruvic acid is changed into?

a) Acetyl-CoA
b) Ethyl-CoA
c) Methyl-CoA
d) Propyl-CoA

3. TThe final step of cellular respiration is the?

a) Krebs cycle
b) Glycolysis
c) Fermentation
d) Electron transport chain

4. How many carbon atoms are present in Acetyl-CoA?

a) Five
b) Three
c) Two
d) Four

5. FFAD is a(n)?

a) Ribozyme
b) Coenzyme
c) Apoenzyme
d) Holoenzyme

6. When electrons move through a series of electron carriers, they____energy?

a) Lose
b) Lose and absorb
c) None of these
d) Absorb

7. KKrebs cycle was discovered by?

a) Gregor Mendel
b) Hans Krebs
c) Robert Koch
d) Luis Pasteur

8. HHow many ATP molecules are produced by one NADH molecule?

a) Two
b) Three
c) Five
d) Four

9. Hans Krebs was a?

a) Physiologist
b) Philosopher
c) Biochemist
d) Radiologist

10. HHow many ATP molecules are spent by NADH when it moves across the mitochondrial membrane?

a) One
b) Two
c) Four
d) Three

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