Amino Acids Questions & Answers - Page 2

6.

Serine and threonine are polar amino acids due to

A.

reactive hydroxyl group in the side chain

B.

reactive alcoholic group in the side chain

C.

reactive keto group in the side chain

D.

reactive aldehyde group in the side chain

Correct answer is A

No explanation has been provided for this answer.

7.

Which of the following is a non-protein amino acid?

A.

Dopamine

B.

Hydroxylysine

C.

Cystine

D.

None of these

Correct answer is A

No explanation has been provided for this answer.

8.

The sulphur containing side chain of cysteine is

A.

ampiphillic, highly reactive and capable of reacting with another cysteine

B.

hydrophillc, highly reactive and capable of reacting with another cysteine

C.

hydrophobic, highly reactive and capable of reacting with another cysteine

D.

none of the above

Correct answer is C

No explanation has been provided for this answer.

9.

The sequence of letters 'WYQN' will represent

A.

Tryptophan, tyrosine, glutamic acid, asparagine

B.

Tryptophan, tyrosine, glutamine, asparagine

C.

Tryptophan, glutamine, tryptophan, asparagine

D.

Glutamine, tyrosine, tryptophan, aspartic acid

Correct answer is B

No explanation has been provided for this answer.

10.

Which of the following amino acid contain an imidazolium moiety?

A.

Alanine

B.

Valine

C.

Cysteine

D.

Histidine

Correct answer is D

No explanation has been provided for this answer.