Biochemistry - Structure and Properties of Peptides

Exercise :: Structure and Properties of Peptides - Section 1

  • Structure and Properties of Peptides - Section 1
11. 

An oil drop with a polar coat is a metaphor referring to the three dimensional structure of

A. fibrous proteins
B. collagen
C. globular proteins
D. silk protein

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

12. 

What was the first protein whose complete tertiary structure was determined?

A. Lysozyme
B. Myoglobin
C. Pancreatic ribonuclease
D. Pancreatic DNase

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

13. 

The peptide bond in proteins is

A. planar, but rotates to three preferred dihedral angles
B. nonpolar, but rotates to three preferred dihedral angles
C. nonpolar, and fixed in a trans conformation
D. planar, and usually found in a trans conformation

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

14. 

In β-pleated sheet structures neighbouring

A. chains lie in a flat plane
B. neighboring residues are hydrogen bonded
C. neighboring chains are connected by a-helices
D. neighboring chains are hydrogen bonded

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

15. 

The same peptide, Val-Lys-Glu-Met-Ser-Trp-Arg-Ala. was digested with chymotrypsin to produce

A. Val-Lys + Glu-Met-Ser + Trp-Arg-Ala.
B. Val-Lys-Glu-Met-Ser-Trp + Arg-Ala.
C. Val-Lys-Glu-Met-Ser + Trp-Arg-Ala.
D. Val-Lys-Glu-Met + Ser-Trp-Arg-Ala.

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.