Sodium-potassium pumps are examples of what type of cellular transport?
a) primary active transport
b) secondary active transport
c) transport in vesicles
d) facilitated diffusion
e) hypertonic transport
b) secondary active transport
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Are all the disulfide bonds in insulin between the two chains?
a. yes b. no
Researchers tend to name genes based on what
happens in their absence. The tinman gene in Drosophila results in flies a. without hearts. b. with nonjointed legs. c. with a thick exoskeleton. d. with rust colored eyes. e. without brains.
Suddenly, you find yourself in a situation in which someone is shooting live ammunition at you. Which hormone is likely to be one of the first secreted as a direct response to this situation?
A) LH B) FSH C) epinephrine D) testosterone
Which of the following immunoglobulins is produced by plasma cells in response to an allergen?
A. IgA B. IgD C. IgE D. IgG E. IgM