Q. No.The enzymatic machinery to partially oxidize glucose without the help of oxygen is present in:
1. All living organisms
2. All prokaryotes only
3. Prokaryotes and obligate anaerobes only
4. Facultative and obligate anaerobes only
1. All living organisms
2. All prokaryotes only
3. Prokaryotes and obligate anaerobes only
4. Facultative and obligate anaerobes only
What is the metabolic fate of pyruvate?
1. It is the end product of glycolytic pathway
2. It is reduced to acetyl CoA in the presence of oxygen
3. It depends on the cellular needs
4. It is decarboxylated in the cytosol
In aerobic respiration, oxygen acts as:
| I: | Terminal electron acceptor |
| II: | Terminal proton acceptor |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
The overall goal of glycolysis, Krebs cycle and the electron transport system is the formation of:
1. ATP in small stepwise units
2. ATP in one large oxidation reaction
3. Sugars
4. Nucleic acids
| 1. | α-ketoglutarate | 2. | Isocitrate |
| 3. | Succinyl CoA | 4. | Succinic acid |
The electron transport system in mitochondria is located in the:
1. Inner mitochondrial membrane
2. Outer mitochondrial membrane
3. Inter membrane space
4. Matrix
| Assertion (A): | ATP acts as the energy currency of the cell. |
| Reason (R): | ATP is a ribonucleoside triphosphate. |
| 1. | Both (A) and (R) are True and (R) explains (A). |
| 2. | (A) is True but (R) is False. |
| 3. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 4. | (A) is False but (R) is True. |
1. Lactase
2. Zymase
3. Diastase
4. Invertase
| 1. | fructose 1, 6-bisphosphate is split into dihydroxyacetone phosphate and 3-phosphoglyceraldehyde (PGAL) |
| 2. | 3-phosphoglyceraldehyde (PGAL) is converted to 1, 3-bisphosphoglycerate (BPGA) |
| 3. | BPGA is converted to 3-phosphoglyceric acid (PGA) |
| 4. | PEP is converted to pyruvic acid |
| 1. | within the inner mitochondrial membrane |
| 2. | on the outer surface of the inner mitochondrial membrane |
| 3. | on the inner surface of the inner mitochondrial membrane |
| 4. | in the mitochondrial matrix |
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