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20190321 Ch12 Metabolism and Bioenergetics
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by 邱奕霖, 2019-03-28 14:20, Views(658)
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Title
1.
index 1
2.
Overview of Metabolism
3.
Cells take up the products of digestion.
4.
Overview of Metabolism
5.
** after 20190321 Ch12 2.ppt
6.
Overview of Metabolism
7.
Cells take up the products of digestion.
8.
Starchy foods are hydrolyzed by amylases.
9.
Proteins are hydrolyzed by proteases.
10.
Fatty acids are hydrolyzed by lipases.
11.
Monomers are stored as polymers.
12.
Some tissues use monosaccharides to produce glycogen.
13.
Monomers are stored as polymers.
14.
Fuels are mobilized as needed
15.
Slide 11
16.
Fuels are mobilized as needed
17.
Slide 11
18.
Glycogen breakdown occurs via phosphorolysis.
19.
Slide 11
20.
Fuels are mobilized as needed
21.
Slide 11
22.
Glycogen breakdown occurs via phosphorolysis.
23.
Slide 11
24.
Fuels are mobilized as needed
25.
Slide 11
26.
Glycogen breakdown occurs via phosphorolysis.
27.
Slide 11
28.
Fuels are mobilized as needed
29.
Monomers are stored as polymers.
30.
Some tissues use monosaccharides to produce glycogen.
31.
Monomers are stored as polymers.
32.
Fuels are mobilized as needed
33.
Slide 11
34.
Glycogen breakdown occurs via phosphorolysis.
35.
Proteins are degraded by proteases or by the proteasome.
36.
Proteins being degraded in the proteasome are tagged with a small protein called ubiquitin.
37.
Proteins are degraded by proteases or by the proteasome.
38.
Proteins being degraded in the proteasome are tagged with a small protein called ubiquitin.
39.
Protein Degradation by the Proteasome
40.
Some major metabolic pathways share a few common intermediates.
41.
index 2
42.
Some major metabolic pathways share a few common intermediates.
43.
Many metabolic pathways include oxidation-reduction reactions.
44.
Carbons in fatty acids and carbohydrates are oxidized to CO2.
45.
Some cofactors undergo oxidation-reduction.
46.
Electrons are transferred from ubiquinone to ubiquinol in a stepwise manner.
47.
Some cofactors undergo oxidation-reduction.
48.
Electrons are transferred from ubiquinone to ubiquinol in a stepwise manner.
49.
Cofactors are recycled through oxidative phosphorylation.
50.
Overview of Metabolism
51.
Humans do not synthesize some important biomolecules.
52.
Overview of Metabolism
53.
Humans do not synthesize some important biomolecules.
54.
Humans do not synthesize vitamins.
55.
Humans do not synthesize vitamins.
56.
The free energy change depends on reactant concentrations.
57.
Biochemical measurements for ΔG°' are valid under standard conditions.
58.
Actual free energy changes are related to ΔG°'.
59.
Reaction Spontaneity
60.
Consider the following reactions.
61.
ATP hydrolysis provides the energy for glucose phosphorylation.
62.
What’s so special about ATP?
63.
ATP is often involved in coupled processes.
64.
Why does ATP hydrolysis release so much energy?
65.
Several different molecules can serve as energy currency within a cell.
66.
Why does ATP hydrolysis release so much energy?
67.
Several different molecules can serve as energy currency within a cell.
68.
Thioester hydrolysis also releases a large amount of free energy.
69.
Regulation occurs at steps with the largest free energy changes.
70.
Review of Metabolism
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