Q. No.In mitochondria, protons accumulate in the:
1. Matrix
2. Outer membrane
3. Inner membrane
4. Intermembrane space
1. Matrix
2. Outer membrane
3. Inner membrane
4. Intermembrane space
During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP:
| 1. | Glycolysis |
| 2. | Krebs cycle |
| 3. | Electron transport chain |
| 4. | Conversion of pyruvic acid to acetyl CoA |
In glycolysis, during oxidation, electrons are removed by:
1. Glyceraldehyde-3-phosphate
2. NAD+
3. Molecular oxygen
4. ATP
Which of the following yield maximum energy?
1. By glycolysis in a sprinter
2. Aerobic respiration in germinating seeds
3. Fermentation by yeast
4. Anaerobic respiration
How many ATP molecules are produced by the Aerobic oxidation of one molecule of glucose:
1. 2
2. 4
3. 38
4. 34
Glycolysis is:
| 1. | Oxidation of glucose to glutamate |
| 2. | Conversion of pyruvate to citrate |
| 3. | Oxidation of glucose to pyruvate |
| 4. | Conversion of glucose to haem |
In which one of the following do the two names refer to one and the same thing:
| 1. | Kreb's cycle and Calvin cycle |
| 2. | Tricarboxylic acid cycle and citric acid cycle |
| 3. | Citric acid cycle and Calvin cycle |
| 4. | Tricarboxylic acid cycle and urea cycle |
Pyruvate dehydrogenase activity during aerobic respiration requires:
| 1. | Calcium | 2. | Iron |
| 3. | Cobalt | 4. | Magnesium |
Which of the following statements is incorrect?
| 1. | ATP is synthesized through complex V. |
| 2. | Oxidation-reduction reactions produce a proton gradient in respiration. |
| 3. | During aerobic respiration, the role of oxygen is limited to the terminal stage. |
| 4. | In ETC (Electron Transport Chain), one molecule of NADH+H+ gives rise to 2 ATP molecules, and one FADH2 gives rise to 3 ATP molecules. |
The number of substrate level of phosphorylations in one turn of citric acid cycle is:
| 1. | One | 2. | Two |
| 3. | Three | 4. | Four |
© 2026 GoodEd Technologies Pvt. Ltd.