86) The following metabolite A) remains a paradox to biochemists B) is a coenzym

Question

86) The following metabolite A) remains a paradox to biochemists B) is a coenzyme in transamination reactions C) is required for odd carbon FA catabolism D) is riboflavin E) is phosphoascorbic acid HO OH 87) The following metabolite A) is a precursor for NAD B) is directly incorporated into purines C) a malodorous volatile from amino acid degradation D) is readily made from proline in the liver E) binds the cannabinoid receptor OH 88) The following metabolite A) can only exist in a single redox state B) is ubiquitous in the universe C) is part isoprenoid and relegated to membranes D) the dominant methyl donor in plants E) in conjunction with bile salts aids the solubilization of dietary TAGs CH HNOC 89) The following metabolite A) is a polyketide toxin used as an ETC inhibitor B) is essential for catabolizing odd chain FAs C) is the active site of Rubisco D) is chlorophyll A1 E) is part of cytochrome C HNOC 0 90) The following metabolite A) is required for the production of dTMP B) is a synthetic PPAR inhibitor C) can accept a methyl group from alanine D) is the dominant nitrogenous waste excreted by coelacanths E) none of the above H2N

Explanation / Answer

Q 86)

Ans - B

Pyridoxal phosphate (PLP,(4-formyl-5-hydroxy-6-methylpyridin-3-yl)methyl phosphate ), the active form of vitamin B6, is a coenzyme in all transamination reactions.

Q87)

Ans- A

The metabolite is Nicotinic acid (N a) is a vitamin precursor for NAD+ used in salvage metabolic pathway. This compound can be taken up from diet and is termed as Vitamin B3 or niacin.

Q89)

Answer - B

The metabolite is Vitamin B-12.It is a water-soluble B vitamin required as a cofactor for only 2 enzymes in human physiology: methionine synthase (MTR) 6 which generates and uses methylcobalamin and functions in the cytosol to remethylate homocysteine to methionine, and L -methyl-malonyl-coenzyme A mutase, which uses 5 9 -deoxyadenosylcobalamin as a cofactor and functions in mitochondria to catabolize branched-chain and odd-chain FAs.

Related Questions

Navigate

• Browse (All)
• Browse 8
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.