Chapter 3 Energy Transformation

Objectives:• Review processes and reactions important to

metabolic energy transformation • Recall the rules that govern energy release and

consumption in chemical reactions• Evaluate the mechanisms of energy generation,

including substrate-level and oxidative phosphorylation

Fig. 3-1, p. 55

Activationenergy

A

B

Exothermic - G

Endothermic + G

Fig. 3-3, p. 56

Fig. 3-5, p. 59

Table 3-1, p. 60

Fig. 3-7, p. 60

Fig. 3-8a, p. 60

Fig. 3-9, p. 62

Fig. 3-10, p. 64

Fig. 3-11, p. 64

Fig. 3-14, p. 66

Fig. 3-16, p. 67

Table 3-2, p. 67

Intermembrane space

Inner mitochondrial membrane

H+

H+H+

Cyt c

NADH 1 NAD+

Matrix

FADH2

CoQ

1/2 O2 1 2 H+

IIIV

FAD H2O

IIII

H+

Fig. 3-17, p. 68

III

Intermembrane space

H+

Matrix

NADH 1 H+ NAD+FADH2

ADP 1 Pi

F1

F0

II

ATP

H2O

Cyt c

IV

FAD 1/2 O2 1 2H+

I

H+H+

H+

Fig. 3-18, p. 68

p. 71