A series of enzyme-mediated reactions by which cells build, remodel, or break down organic molecules is known as ____.
a. energy carriers
b. metabolic pathways
c. the induced-fit model
d. intermediary compounds
e. activation
Ans: b. metabolic pathways
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In a solution at pH 7.0, a polymer of lysine (polylysine) is a random coil with no secondary structure. In order for it to possibly assume an ?-helix structure, the pH of the solution must be:
A. 4 B 6 C. 8 D. 10 E. 12
The ____________ of a comet can be up to a million kilometers in diameter
Fill in the blank(s) with correct word
What type of mutation occurred in the following? Normal allele GGAAUGAAACAGGAACCC Mutant allele GGAAUGAAACAGGUACCC
A. substitution B. insertion C. deletion D. frameshift
Changes in the human species since the time of the first humans is an example of
A. evolution. B. hydrolysis. C. life. D. metabolism.