1. superoxide dismutase catalase Do not post on Internet
Figure 6.1 Page 96
Do not post on Internet

2. Caenorhabditis elegans
Figure 6.2 Page 97

3. Stepped Art Figure 6.5a,b Page 100
product with more energy
(plus by-products
602 and 6H2O)
Energy In
energy-poor
starting substances 6 12
Endergonic reaction
Energy Out
energy-rich starting
substance +
602
products with less energy 6
Exergonic reaction
Stepped Art Figure 6.5a,b Page 100

4. Stepped Art Figure 6.5c,d Page 100
Energy input
required
Potential energy
released
Stepped Art Figure 6.5c,d Page 100

5. Energy Releasing Reactions ATP Forms Energy Requiring Reactions
Cellular Work
Figure 6.6a Page 101

6. nucleotide base (adenine) three phosphate groups
sugar (ribose)
Figure 6.6b Page 101

7. Stepped Art Figure 6.6c Page 101
AMP
adenine
ribose
ADP P
ATP P
Stepped Art Figure 6.6c Page 101

8. ATP
energy output
energy
input
ADP + Pi
In-text figure Page 101

9. ADP Pi energy input energy output ATP
Ca++
Ca++
Ca++
Ca++
Ca++
Ca++
Ca++
Ca++
ADP Pi
energy input
energy output
ATP
Figure 6.7 Page 101

10. Linear Pathway: F A B C D E Cyclic Pathway: G H I A B C D E F
Branching Pathway: K J M L N
Stepped Art
Figure 6.8 Page 102

11. Relative Concentration Relative Concentration
of Reaction
Relative Concentration
of Product
Highly
Spontaneous
Equilibrium
Highly
Spontaneous
Figure 6.9 Page 103

12. Glucose-1-phosphate Glucose-6-phosphate
Figure 6.10 Page 103

13. Figure 6.11a,b Page 104 H2 1/2 O2 2H+ 2e- H2O 1. Water molecules
split; hydrogen ions,
electrons, oxygen
released
electric
spark
3. Some
released
energy is
used to
make ATP
Explosive
release of
energy as
heat
cannot be
harnessed
for cellular
work 2.
Electrons
transferred
through
an electron
transfer system
Figure 6.11a,b Page 104

14. electron transfer chains
sunlight
H+ concentration and electric gradients build up and are used to drive ATP formation
H2O e-
electron transfer chains
(dark green)
NADP+
NADPH
Figure 6.11c Page 104

15. starting substance activation energy without enzyme activation energy
with enzyme
energy
released
by the
reaction
products
Figure 6.12a Page 105
forward reaction

16. ENZYME!
Figure 6.12b Page 105

17. Stepped Art Figure 6.14 Page 107
Action of catalase
histidine
hydrogen peroxide
heme group
Stepped Art Figure 6.14 Page 107

18. Stepped Art Figure 6.15a,b Page 108
allosteric inhibitor
allosteric binding site vacant; active site can bind substrate
active site altered, can’t bind substrate
Allosteric inhibition
allosteric activator
enzyme active site
vacant
allosteric binding site
active site cannot bind substrate
active site altered, can bind substrate
Allosteric activation
Stepped Art Figure 6.15a,b Page 108

19. END PRODUCT (tryptophan)
Feedback Inhibition
enzyme 2
enzyme 3
enzyme 4
enzyme 5
Excess end product molecules
bind with molecules of enzyme 1.
The greater the excess, the more enzyme molecules are inhibited and the greater the decrease in tryptophan synthesis.
enzyme 1
END PRODUCT (tryptophan)
SUBSTRATE
Figure 6.16 Page 108

20. Feedback inhibition animation.
Click to view animation.
Animation

21. Figure 6.17b Page 109

22. Figure 6.17c Page 109

23. Do not post on Internet
Figure 6.19c Page 110
Firefly Luciferase