If fatty acids were to enter the respiratory pathway, they must be converted to a molecule with:
1. | Two carbons | 2. | Three carbons |
3. | Five carbons | 4. | Six carbons |
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The respiratory pathway is best described as:
1. | Catabolic | 2. | Anabolic |
3. | Amphibolic | 4. | Amphipathic |
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The correct descending order of the RQ value, when carbohydrates, proteins and fats are used as respiratory substrate would be:
1. Protein ˃ Fats ˃ Carbohydrates
2. Protein ˃ Carbohydrates ˃ Fats
3. Carbohydrates ˃ Protein ˃ Fats
4. Fats ˃ Carbohydrates ˃ Protein
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Phosphorylation of glucose during glycolysis is catalysed by
1. Phosphoglucomutase | 2. Phosphoglucoisomerase |
3. Hexokinase | 4. Phosphorylase |
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Pyruvic acid, the key product of glycolysis can have many metabolic fates. Under aerobic condition, it forms
1. | Lactic acid | 2. | CO2 + H2O |
3. | Acetyl CoA + CO2 | 4. | Ethanol + CO2 |
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Which of the following exhibits the highest rate of respiration?
1. Growing shoot apex | 2. Germinating seed |
3. Root tip | 4. Leaf bud |
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Match the following and choose the correct option from those given below.
Column A | Column B | ||
A. | Molecular oxygen | i. | \(\alpha\)-Ketoglutaric acid |
B. | Electron acceptor | ii. | Hydrogen acceptor |
C. | Pyruvate dehydrogenase | iii. | Cytochrome C |
D. | Decarboxylation | iv. | Acetyl CoA |
Options :
A | B | C | D | |
1. | ii | iii | iv | i |
2. | iii | iv | ii | i |
3. | ii | i | iii | iv |
4. | iv | iii | i | ii |
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A reducing agent in a redox reaction:
1. gains electrons and gains energy.
2. loses electrons and loses energy.
3. gains electrons and loses energy.
4. loses electrons and gains energy.
What is the end product of glycolysis?
1. NADH | 2. ATP |
3. G3P | 4. Pyruvate |
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The outputs of the Krebs cycle do not include:
1. NADP | 2. |
3. ATP | 4. |
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