JEE CHEMISTRY MCQ: BIOMOLECULES

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Understanding +4 | -1

Assertion (A):

\alpha

-helix structure of proteins is in the shape of right handed screw.

Reason (R): There is hydrogen bond between the

> \mathrm{NH}

group of each amino acid to the

> =\mathrm{O}

of an adjacent turn of the helix.

View answer and explanation

Correct option: A

Both

\mathrm{A}

and

\mathrm{R}

are correct;

\mathrm{R}

is the correct explanation of

\mathrm{A}

Option A (Both

\mathrm{A}

and

\mathrm{R}

are correct;

\mathrm{R}

is the correct explanation of

\mathrm{A}

.) is correct because the alpha-helix structure is a right-handed screw stabilized by hydrogen bonds between the NH group of each amino acid and the CO group of an adjacent turn.

More Questions from BIOMOLECULES

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Which one of the following compounds is different from the rest in terms of undergoing hydrolysis to form simpler compounds? Which of the following enzymes, converts glucose to alcohol? The one which has least iodine value is Identify the essential amino acids from below:

(A) Valine
(B) Proline

(C) Lysine
(D) Threonine

(E) Tyrosine

Choose the correct answer from the options given
below: Which of the following statements is true about a peptide bond (RCONHR)? Peptide and hydrogen bonds are present in the Primary structure of protein is due to