- 1(current)
Q. No.The enzyme, decarboxylase, catalyses the following step :
1. conversion of citric acid to cis aconitic acid
2. fumaric acid to malic acid
3. oxalosuccinic acid to -ketoglutaric acid
4. malic acid to oxaloacetic acid
Which of the following is the connecting link between glycolysis and Kreb's cycle?
| 1. | Acetyl Co-A | 2. | Oxalosuccinic acid |
| 3. | Pyruvic acid | 4. | Citric acid |
Which statement is wrong for Krebs cycle?
| 1. | There are three points in the cycle where is reduced to NADH + |
| 2. | There is one point in the cycle where is reduced to |
| 3. | During conversion of succinyl Co-A to succinic acid, a molecule of GTP is synthesised |
| 4. | The cycle starts with condensation of acetyl group (acetyl Co-A) with pyruvic acid to yield citric acid |
After glycolysis, the fate of glucose in the mitochondrial matrix is
1. oxidation
2. reduction
3. oxidative decarboxylation
4. hydrolysis
The number of substrate-level phosphorylations in one turn of a citric acid cycle is
| 1. | One | 2. | Two |
| 3. | Three | 4. | Four |
| 1. | One | 2. | Two |
| 3. | Three | 4. | Four |
| 1. | α–ketoglutaric acid | 2. | Oxalo succinic acid |
| 3. | Succinic acid | 4. | Fumaric acid |
All enzymes of TCA cycle are located in the mitochondrial matrix except one which is located in inner mitochondrial membranes in eukaryotes and in cytosol in prokaryotes. This enzyme is
1. lactate dehydrogenase
2. isocitrate dehydrogenase
3. malate dehydrogenase
4. succinate dehydrogenase
- 1(current)
Q. No.
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