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 |
1. | Eight | 2. | Four |
3. | Six | 4. | Two |
Match List-I with List II
List-I | List-II | ||
(a) | ETS complex-I | (i) | Cyt bc1 |
(b) | ETS complex-II | (ii) | Cyt a,a3 and 2 copper centres |
(c) | ETS complex-III | (iii) | NADH dehydrogenase |
(d) | ETS complex-IV | (iv) | Ubiquinone and FADH2 dehydrogenase |
Choose the correct answer from the options given below:
(a) | (b) | (c) | (d) | |
1. | (ii) | (i) | (iv) | (iii) |
2. | (iv) | (iii) | (ii) | (i) |
3. | (iii) | (ii) | (i) | (iv) |
4. | (iii) | (iv) | (i) | (ii) |
Identify the cytochrome which acts as a mobile carrier for the transfer of electrons between complex III and IV?
1. | Cytochrome a | 2. | Cytochrome a3 |
3. | Cytochrome b c1 | 4. | Cytochrome c |
Assertion (A): | ATP is used at two steps in glycolysis . |
Reason (R): | First ATP is used in converting glucose into glocose-6-phosphate and second ATP is used in conversion of fructose-6-phosphate into fructose-1-6-diphosphate. |
1. | (A) is False but (R) is True. |
2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
4. | (A) is True but (R) is False. |