10@10 amino acid

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1 point

Absorption at 280 nm is due to

Aliphatic amino acid

aromatic amino acid

Non polar amino acid

Both a and b

1 point

22nd amino acid is

Selenocysteine

hydroxy proline

Pyrrolysine

lysine

1 point

AA with OH group is

Serine alanine

Alanine valine

Serine threonine

valine isoleucine

1 point

What reaction does two cysteine molecules use to form cystine

oxidation

hydrolysis

reduction

none

1 point

NAturally occurring AA in proteins are

L amino acid only

D amino acid only

Both

Alpha helices only

1 point

Which of the following is imino acid

Proline

Isoleucine

Leucine

Lysine

1 point

Which of the following is a alpha helix terminator ?

Valine

Leucine

Arginine

Proline

1 point

Polyamines are

Putrescine , spermidine, ornithine. Derived from spermine and methionine

Putrescine , spermidine. Derived from ornithine and methionine

Putrescence, spermidine, spermine. Derived from ornithine and methionine

None of the above

1 point

Specific dynamic action is maximum in

Protein

Carbohydrate

fats

Minerals

10.

1 point

Enzyme + Coenzyme constitutes

Apoenzyme

proenzyme

Protoenzyme

Holoenzyme

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