Biochemistry - Structure and Properties of Amino Acids

Exercise :: Structure and Properties of Amino Acids - Section 1

  • Structure and Properties of Amino Acids - Section 1
16. 

Protein fluorescence arises primarily from which residue?

A. Arginine
B. Tryptophan
C. Tyrosine
D. Phenylalanine

Answer: Option B

Explanation:

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17. 

Which of the following amino acid is known as half-cystine residue?

A. Cysteine
B. Isoleucine
C. Valine
D. Histidine

Answer: Option A

Explanation:

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18. 

Which of the following is not an essential amino acid?

A. Aspartic acid
B. Glutamic acid
C. Glycine
D. All of these

Answer: Option D

Explanation:

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19. 

Which of the following is not a sensible grouping of amino acids based on their polarity properties?

A. Ala, Leu, and Val
B. Arg, His, and Lys
C. Phe, Trp, and Tyr
D. Asp, Ile, and Pro

Answer: Option D

Explanation:

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20. 

Proteins and macromolecular structures take on their higher order structures

A. by self-assembly
B. with the help of molecular chaperons
C. with the help of precursor sequences that are removed from the final structures
D. all of the above

Answer: Option D

Explanation:

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