Structure and Properties of Peptides – Section 1


Warning: Undefined variable $ext in /www/wwwroot/gkfeed.com/public_html/wp-content/plugins/show-hidecollapse-expand/bg_show_hide.php on line 281

Warning: Undefined variable $ext in /www/wwwroot/gkfeed.com/public_html/wp-content/plugins/show-hidecollapse-expand/bg_show_hide.php on line 281

Warning: Undefined variable $ext in /www/wwwroot/gkfeed.com/public_html/wp-content/plugins/show-hidecollapse-expand/bg_show_hide.php on line 281

Warning: Undefined variable $ext in /www/wwwroot/gkfeed.com/public_html/wp-content/plugins/show-hidecollapse-expand/bg_show_hide.php on line 281

Warning: Undefined variable $ext in /www/wwwroot/gkfeed.com/public_html/wp-content/plugins/show-hidecollapse-expand/bg_show_hide.php on line 281

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

Correct Answer: C. globular proteins
Advertisement

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

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

Correct Answer: B. Myoglobin
Advertisement

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

Correct Answer: D. planar, and usually found in a trans conformation
Advertisement

14. In β-pleated sheet, structures neighboring

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

Correct Answer: D. neighboring chains are hydrogen bonded
Advertisement

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.

Correct Answer: B. Val-Lys-Glu-Met-Ser-Trp + Arg-Ala.
Advertisement

Warning: Undefined variable $in_same_cat in /www/wwwroot/gkfeed.com/public_html/wp-content/plugins/EXP.GKFEED.COM/function.php on line 27

Warning: Undefined variable $excluded_categories in /www/wwwroot/gkfeed.com/public_html/wp-content/plugins/EXP.GKFEED.COM/function.php on line 27

Leave A Comment?