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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