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Home >> Biochemistry >> Amino Acids >> Mcqs Page 1

(Single Best Answer) Question 1: Most basic amino acid among the following is ?

A) Arginine
B) Alanine
C) Lysine
D) Histidine
Answer (Select an option above to get the answer):

(Single Best Answer) Question 2: Which one of the following can be a homologous substitution for isoleucine in a protein sequence ?

A) Methionine
B) Aspartic acid
C) Valine
D) Arginine
Answer (Select an option above to get the answer):

(Single Best Answer) Question 3: Which one of the following amino acids is most likely to be found in the transmembrane region of a protein ?

A) Lysine
B) Arginine
C) Leucine
D) Aspartate
Answer (Select an option above to get the answer):

(Single Best Answer) Question 4: In brain, Urea is converted into ?

A) Alanine
B) Aspartate
C) Glutamine
D) Glutamic acid
Answer (Select an option above to get the answer):

(Single Best Answer) Question 5: Alanine can be replaced by ?

A) Tryptophan
Answer (Select an option above to get the answer):

(Single Best Answer) Question 6: Which of the following is not an essential amino acid ?

A) Alanine
B) Leucine
C) Lysine
D) Methionine
Answer (Select an option above to get the answer):

(Single Best Answer) Question 7: The amino acid which serves as a carrier of ammonia from skeletal muscle to liver is ?

A) Alanine
B) Methionine
C) Arginine
D) Glutamine
Answer (Select an option above to get the answer):

(Single Best Answer) Question 8: Substitution of which one of the following amino acids in place of alanine would increase the absorbance of protein at 280 nm ?

A) Leucine
B) Arginine
C) Tryptophan
D) Prolein
Answer (Select an option above to get the answer):

(Single Best Answer) Question 9: The amino acid residue having an imino side chain is ?

A) Histidine
B) Lysine
C) Proline
D) Tyrosine
Answer (Select an option above to get the answer):