Amino Acid Quiz Questions with Answers by Questionsgems.
Set of Biochemistry Multiple Choice Questions & Answers
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Amino Acid Quiz Questions with Answers
Identify the amino acids containing nonpolar, aliphatic R groupsa) Phenylalanine, tyrosine, and tryptophanb) Glycine, alanine, leucinec) Lysine, arginine, histidined) Serine, threonine, cysteineAnswer: b
The two amino acids having R groups with a negative net charge at pH 7.0 area) Aspartate and glutamateb) Arginine and histidinec) Cysteine and methionined) Proline and valineAnswer: a
If pK1 = 2.34 and pK2 = 9.60, then the isoelectric point pI isa) 5.87b) 5.97c) 3.67d) 11.94Answer: b
Which of the following is a true statement?a) Tryptophan and tyrosine are significantly more polar than phenylalanineb) Leucine is commonly used as an ingredient in the buffers of SDS pagec) Aspartate is an essential amino acidd) Lysine is a non-essential amino acidAnswer: a
Which among the following is a non-essential amino acid?a) Serineb) Threoninec) Lysined) HistidineAnswer: a
Which of the following is an essential amino acid?a) Cysteineb) Asparaginec) Glutamined) PhenylalanineAnswer: d
Which of the following is an imino acid?a) Alanineb) Glycinec) Prolined) SerineAnswer: c
Which among the following is both glucogenic and ketogenic?a) Isoleucineb) Leucinec) Lysined) HistidineAnswer: a
An amino acid that yields acetoacetyl CoA during the catabolism of its carbon skeleton will be considereda) Glycogenicb) Ketogenicc) Both glycogenic and ketogenicd) EssentialAnswer: b
Number of chiral centers in isoleucine isa) 1b) 2c) 3d) 4Answer: b