Structure and Properties of Amino Acids – Section 1

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21. What is the product of the catabolic breakdown of Alanine?

A. Fumarate
B. Oxaloacetate
C. Pyruvate
D. Malate

Correct Answer: C. Pyruvate

22. How many different amino acids are there?

A. 3
B. 20
C. 100
D.  An infinite number

Correct Answer: B. 20

23. Amino acids required in the human diet and not synthesized by the body are called

A. specialized
B. trace
C. essential
D. accessory

Correct Answer: C. essential

24. Which of the following amino acid contain an imidazolium moiety?

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

Correct Answer: D. Histidine

25. The sequence of letters ‘WYQN’ will represent

A. Tryptophan, tyrosine, glutamic acid, asparagine
B. Tryptophan, tyrosine, glutamine, asparagine
C. Tryptophan, glutamine, tryptophan, asparagine
D. Glutamine, tyrosine, tryptophan, aspartic acid

Correct Answer: B. Tryptophan, tyrosine, glutamine, asparagine
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