#Question id: 719
#Unit 1. Molecules and their Interaction Relevant to Biology
Suppose that a 40-residue segment of a protein folds into a two-stranded antiparallel β structure with a 4-residue hairpin turn. What is the longest dimension of this motif?
#Question id: 689
#Unit 1. Molecules and their Interaction Relevant to Biology
In the diagram below, the plane drawn behind the peptide bond indicates the:
A) absence of rotation around the C—N bond because of its partial double-bond character.
B) plane of rotation around the Ca—N bond.
C) region of steric hindrance determined by the large C=O group.
D) region of the peptide bond that contributes to a Ramachandran plot.
Which of the following best represents the backbone arrangement of two peptide bonds?
#Question id: 18774
#Unit 13. Methods in Biology
#Question id: 1080
#Unit 4. Cell Communication and Cell Signaling
In the formation of biofilms, such as those forming on unbrushed teeth, cell signaling serves which function?
#Question id: 10916
#Unit 6. System Physiology – Plant
A photosynthetic sugar sucrose can be hydrolyzed into glucose and fructose in the apoplast by a sucrose-splitting enzyme, this enzyme known as;