Proline is referred to as the "helix breaker" because
A) its only found in the L form, which is incompatible with helical protein structure.
B) it lacks the hydrogen atom needed for hydrogen bonding.
C) it lacks a charged functional groups for ionic bonding.
D) it is hydrophobic.
E) it has a polar functional group.
Answer: B
You might also like to view...
What is the name of the neurotransmitter used at a skeletal neuromuscular junction?
A. Norepinephrine B. Calmodulin C. Acetylcholinesterase D. Acetylcholine
An example of an organism's genotypic characteristic is its:
a. macroscopic morphologic structure. b. microscopic morphologic structure. c. nucleic acid composition. d. antigenic properties.
Hydrolysis of sucrose, a disaccharide, results in
A. two nucleotides. B. two monomers. C. two glycerol units. D. the release of functional groups. E. three monosaccharides.
Cyanobacteria live in aquatic environments and are photosynthetic. The aquatic environment is their ________ and their role as a primary producer is their ________.
A. host; function B. habitat; purpose C. habitat; niche D. niche; habitat