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)

Metalloenzymes — Correctly Matched Pairs

Options

Only (a) and (b)
Only (b) and (c)
Only (a)
All the above — (a), (b) and (c) ✓

Correct Answer: D

Explanation in English

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.

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