Biochemistry - Mock Test 58

Question 571

The first amino acid incorporated in a polypeptide in a ribosome of a human is?

A) N formyl methionine B) Methionine C) Phenyl alanine D) Hydroxy lysine

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Question 572

A growing peptide in a ribosome can not be shifted to the adjacent ribosome because?

A) It is firmly attached B) It will get the amino acid cleaved C) The gap between the ribosomes is too big for a shift D) The adjacent ribosomes have different composition

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Question 573

More creatinine is excreted by?

A) Adult males B) Adult females C) Children D) Pregnant women

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Question 574

Tetra hydroglolate can be freed from N5 methyl tetrahydrofolate only by?

A) Nor epinephrine B) Ethanol amine C) Nicotinamide D) Vitamin B12

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Question 575

The metabolite which sustains urea cycle is?

A) Ornithine B) Citrulline C) Carbamoyl phosphate D) n-acetyl glutamate

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Question 576

The following ketoacid is involved in fixing dietary NH3 into amino acid?

A) Pyruvate B) Oxalo acetate C) Oxalo succinate D) α-keto glutarate

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Question 577

The 2 energy rich compounds needed for protein biosynthesis are?

A) ATP and GTP B) ATP and UTP C) ATP and CTP D) ATP and TTP

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Question 578

Transmethylation of guanido acetic acid gives?

A) Creatine phosphate B) Creatinine C) Choline D) n-methyl nicotinamide

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Question 579

In the synthesis of 1 molecule of urea in the Kreb’s Hanseleit cycle, the number of ATPs required is?

A) 1 B) 2 C) 3 D) 4

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Question 580

The only known physiological methylating agents in the animal organism are?

A) Choline and betaine B) Choline and δ-adenosyl methionine C) Betaine and δ-adenyosyl methionine D) Dimehtyl glycine and betaine

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