Biomolecules  MCQs

MCQs of Biomolecules

Showing 101 to 110 out of 161 Questions
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101.
Which elements are present in all proteins ?
(a) Carbon
(b) Nitrogen
(c) Oxygen
(d) All of the above
Answer:

Option (d)

102.
Which non-metals other than C, H, N and (O) are present in protein ?
(a) Fe, Cu
(b) Zn, Mn
(c) S, P
(d) Se, Po
Answer:

Option (c)

103.
Who stated that 'amino acids are the building block of protein structure' ?
(a) Emil Fischer
(b) Linus pauling
(c) J. D. Watson
(d) H. C. Crick
Answer:

Option (a)

104.
Amino acids which are obtained from hydrolysis of protein are all_____
(a) α-amino acids
(b) β-amino acids
(c) γ-amino acids
(d) δ-amino acids
Answer:

Option (a)

105.
Which of the following amino acid is neutral ?
(a) Aspartic acid
(b) Glycine
(c) Lysine
(d) Arginine
Answer:

Option (b)

106.
Amino acids which can be synthesised in body are known as _____ amino acids ?
(a) neutral
(b) essential
(c) non-essential
(d) amphoteric
Answer:

Option (c)

107.
In which solution zwitter ion of amino acid exists as a positive ion ?
(a) HCI
(b) NaOH
(c) Pyridine
(d) Ammonia
Answer:

Option (a)

108.
In which form does dipolar ion of amino acid exist in alkaline solution ?
(a) Positive ion
(b) Negative ion
(c) Neutral molecule
(d) Zwitter ion
Answer:

Option (b)

109.
Which of the following acid possesses Zwitter ion ?
(a) Adipic acid
(b) Salicylic acid
(c) Picric acid
(d) Sulphanilic acid
Answer:

Option (d)

110.
What will be the value of pOH of an aqueous solution containing amino acid as dipolar ion?
(a) = 7
(b) < 7
(c) >7
(d) ≤ 7
Answer:

Option (a)

Showing 101 to 110 out of 161 Questions
8 9 10 11 12 13