Select Chapter Topics:
Q. No.Subtopic: Glycolysis |
77%
Level 2: 60%+
Hints
In glycolysis, NAD+ is reduced to NADH + H+:
| 1. | during conversion of 1,3 biphosphoglyceric acid to 3-phosphoglyceric acid |
| 2. | during conversion of glyceraldehyde -3-phosphate to 1,3 biphosphoglyceric acid |
| 3. | during conversion of glucose to glucose-6-phospate |
| 4. | during conversion of 3-phosphoglyceric acid to 2-phosphoglycerate |
Subtopic: Glycolysis |
77%
Level 2: 60%+
Hints
Consider the given statements:
| Statement I: | In alcohol fermentation in yeast, pyruvic acid decarboxylase and alcohol dehydrogenase convert pyruvic acid to carbon dioxide and ethanol. |
| Statement II: | In lactic acid fermentation, lactate dehydrogenase reduces pyruvic acid to lactic acid and carbon dioxide in muscle cells during exercise. |
| 1. | Both Statement I and Statement II are correct |
| 2. | Both Statement I and Statement II are incorrect |
| 3. | Statement I is correct but Statement II is incorrect |
| 4. | Statement I is incorrect but Statement II is correct |
Subtopic: Fermentation |
55%
Level 3: 35%-60%
Hints
What acts as the terminal electron acceptor when glucose is completely oxidised inside a cell in the presence of oxygen?
| 1. | Hydrogen sulphide | 2. | Water |
| 3. | Oxygen | 4. | Pyruvic acid |
Subtopic: ETS |
84%
Level 1: 80%+
Hints
During aerobic respiration, the complete oxidation of pyruvate by the stepwise removal of all the hydrogen atoms, leaving three molecules of carbon dioxide, takes place in the:
1. Cytosol
2. Mitochondrial matrix
3. Mitochondrial inter-membrane space
4. Inner mitochondrial membrane
1. Cytosol
2. Mitochondrial matrix
3. Mitochondrial inter-membrane space
4. Inner mitochondrial membrane
Subtopic: Aerobic Respiration |
76%
Level 2: 60%+
Hints
In the Krebs cycle, two successive steps of decarboxylation result in the formation of:
| 1. | α-ketoglutarate | 2. | Isocitrate |
| 3. | Succinyl CoA | 4. | Succinic acid |
Subtopic: Kreb's Cycle |
62%
Level 2: 60%+
Hints
After the two molecules of pyruvate, produced at the end of glycolysis from one molecule of glucose, enter the mitochondrial matrix and till the Krebs cycle is complete, which of the following will not be a correct number of the corresponding molecule produced?
| 1. | Eight molecules of NADH + H+ |
| 2. | Two molecules of FADH2 |
| 3. | Two molecules of ATP |
| 4. | Four molecules of carbon dioxide |
Subtopic: Aerobic Respiration |
57%
Level 3: 35%-60%
Hints
Which complex in the mitochondrial electron transport system contains cytochromes a and a3 and two copper centres?
| 1. Complex I | 2. Complex II |
| 3. Complex III | 4. Complex IV |
Subtopic: ETS |
87%
Level 1: 80%+
Hints
Consider the following statements regarding ATP synthase, complex V of the mitochondrial electron transport system:
| I: | The F1 headpiece is peripheral membrane protein complex and contains the site for the synthesis of ATP from ADP and inorganic phosphate. |
| II: | The F0 is an integral membrane protein complex that forms the channel through which protons cross the inner membrane. |
| III: | For each ATP produced, 4H+ passes through F0 from the intermembrane space to the matrix down the electrochemical proton gradient. |
| 1. | Only III is correct |
| 2. | Only I and II are correct |
| 3. | I, II and III are correct |
| 4. | I, II and III are incorrect |
Subtopic: ETS |
Level 3: 35%-60%
Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 346194
Hints
Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 346194
Identify the incorrectly matched pair:
| Respiratory Complex | Pathway for electron transport | |
| 1. | NADH dehydrogenase | NADH – FMN – [Fe-S] – Q |
| 2. | Succinic dehydrogenase | FADH2 – FMN - Q |
| 3. | Cytochrome bc1 | Cyt b – [Fe-S] – Cyt c1 |
| 4. | Cytochrome c oxidase | CuA – Cyt a – Cyt a3 – CuB |
Subtopic: ETS |
60%
Level 2: 60%+
Hints
Select Chapter Topics:
© 2026 GoodEd Technologies Pvt. Ltd.