Chapter 9

Question 1

SEQ, HD the general process of cellular respiration

Answer 1

Exergonic process -> releases energy
C6H12O6 + 6O2 → 6CO2 + 6H20 + E
CO2 is oxidized
O2 is reduced

Question 2

CC, SEQ stages of cellular respiration (4)

Answer 2

Glycolysis
Oxidation of pyruvate acetyl CoA
The citric acid cycle
Oxidative phosphorylation

Question 3

Glycolysis

Answer 3

Cytosol
1 glucose (6C) -> 2 pyruvate (3C)

2 phases:
E investment (Use 2 ATP)
E Payoff (Make 4 ATP and 2 NADH)
Total 2 ATP and 2 NADH

Question 4

Oxidation of pyruvate acetyl CoA

Answer 4

Entering Mito (Catalyzed by pyruvate dehydrogenase)
2 Pyruvate + 2 NAD+ + 2 CoA -> 2 Co2 + 2 NADH + 2 acetyl CoA
Total 2 ATP 4 NADH

Question 5

The citric acid cycle

Answer 5

Matrix of Mitochondria
Oxaloacetate (4C) + Aceyl-CoA (2C) -> Citrate (6C)
6C -> 5C release CO2 + NADH
5C -> 4C CO2 + NADH
releases: GTP, FADH2, and NADH
Starts over:
1 Glucose = 2 turns

Total: 2 ATP, 6 NADH, 4 Co2, and 2 FADH2

Question 6

Oxidative phosphorylation

Answer 6

Inner Mito Mem

E stored in NADH and FADH2
Goes through ETC to make H+
Chemiosmosis: H+ diffuses through ATP synthase to make ATP

Total: 26 or 28 ATP:

Outcome: 30 or 32 ATP

Question 7

CC Components of Mitochondria

Answer 7

Outer membrane
Intermembrane
Inner Membrane
Matrix (Inside Space)