Topics:
Animal Nutrition, Animal Refresher
Metalloenzymes — Correctly Matched Pairs
Which of the following pairs of metalloenzymes is/are correctly matched?
(a) Se-containing enzyme: Glutathione peroxidase
(b) Cu-containing enzyme: Cytochrome oxidase & Uricase
(c) Zn-containing enzyme: Carbonic anhydrase & Alcohol dehydrogenase
- Only (a) and (b)
- Only (b) and (c)
- Only (a)
- All the above — (a), (b) and (c) — Correct Answer
Explanation:
Correct Answer: All the above
| Mineral | Enzyme(s) / Function |
|---|---|
| Selenium (Se) | Glutathione peroxidase — destroys lipid hydroperoxides; antioxidant |
| Copper (Cu) | Cytochrome oxidase, Uricase, Ceruloplasmin — electron transport; uric acid oxidation; Cu transport |
| Zinc (Zn) | Carbonic anhydrase, Alcohol dehydrogenase, Alkaline phosphatase — CO₂ transport; alcohol metabolism |
Note: Chromium (Cr) = Glucose Tolerance Factor (GTF) — potentiates insulin action.
📚 About this Topic — Animal Nutrition
This multiple choice question is from Animal Nutrition, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Nutrition to strengthen your preparation.
