Question

1. Of the products of this redox reaction, compared to the reagents XH + Y -> X + YH

A. X is oxidized, more stable

B. X is reduced, less stable

C. Y is reduced, less stable

D. A and C

2. Additional to REDOX reactions, energy can be transferred to a biological molecule when that molecule undergoes a

		freezing cool down
		deamination reaction
		catabolic reaction
		phosphorylation reaction

Answer 1

1. The correct answer is D. Both A. and C. In this reaction XH + Y -------> X + YH the X atom loses the H+ ion. Thus XH compund is oxidised to X atom. Y atom accepts proton to form the YH molecule. Thus X is more stable than XH and Y is more stable than Y because reaction occur always to produce stable products. Hence Both A and C are correct.

2. Correct answer is phosphorylation reaction. During a phosphorylation reaction a phosphoryl group(PO32-) combines with organic compounds which helps to store energy in the biological molecules. Thus oxidative phosphorylation reactions along with redox reaction transfer energy to biological molecules.

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