Q. No.Brown fat tissue in vertebrate animals:
1.is the most common storage form of fat
2.allows the animals to regulate their metabolic rate when it is especially hot
3.promotes fluidity of the biological membranes
4. regulates temperature by converting energy from NADH oxidation to heat
1.is the most common storage form of fat
2.allows the animals to regulate their metabolic rate when it is especially hot
3.promotes fluidity of the biological membranes
4. regulates temperature by converting energy from NADH oxidation to heat
Refer to the diagram given below:
Identify the incorrectly matched pair:
|
Reaction catalyzed by enzyme no. |
Type of reaction |
|
|
1. |
1 |
Aldol condensation |
|
2. |
3 |
Oxidative decarboxylation |
|
3. |
5 |
Substrate level phosphorylation |
|
4. |
7 |
Oxidation |
Beta oxidation in respiration is associated with:
1.oxidation of pyruvate
2.activation of acetyl CoA
3.electron transport chain
4. breakdown of fatty acids
Coenzyme A, formed in part from one of the B vitamins, functions to:
| 1. | Oxidize pyruvate | 2. | Reduce pyruvate |
| 3. | Activate the acetyl group | 4. | Facilitate electron flow |
Identify the incorrectly matched row with respect to the four phases of aerobic cellular respiration:
|
Phase |
Cost per glucose molecule |
Gain per glucose molecule |
|
|
1. |
Glycolysis |
2 ATP |
4 ATP, 2 NADH |
|
2. |
Pyruvate oxidation |
None |
2 NADH |
|
3. |
Krebs cycle |
None |
2 ATP, 6 NADH, 2 FADH2 |
|
4. |
Electron transport |
None |
34 ATP |
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In lactate fermentation, the final electron acceptor is:
| 1. | NAD+ | 2. | pyruvate |
| 3. | O2 | 4. | lactic acid |
The glycolytic pathway occurs in:
1. cytoplasm
2. chloroplasts
3. matrix of the mitochondrion
4. cristae of the mitochondrion
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Maximum energy can be released during the oxidation of:
| 1. | proteins | 2. | glucose |
| 3. | fatty acids | 4. | nucleic acids |
When the amount of ATP is increased in a cell, it is expected to:
1. inhibit the enzyme phosphofructokinase.
2. activate the enzyme citrate synthase.
3. inhibit the enzyme pyruvate kinase.
4. activate the enzyme pyruvate dehydrogenase.
In the ETS in mitochondria, identify the product that is not correctly matched with its number:
| 1. | NAD+ = 10 | 2. | FAD = 2 |
| 3. | ATP = 26 | 4. | H2O = 12 |
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