The binding of a neurotransmitter to ligand-gated K+ channels will cause ____ in the postsynaptic membrane
a. depolarization only
b. hyperpolarization
c. repolarization only
d. apolarization
e. depolarization and repolarization
ANSWER: b
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What species did the HIV-1 genome evolve from?
a. Chimpanzees b. Gorillas c. Pigs d. Spider monkey e. Cows
Which of the following is the primary cause of reduced biodiversity in Sumatra and Borneo?
a. replacing forests with palm oil plantations b. exploiting the areas to harvest fish c. legalizing the hunting of some species d. introducing exotic species into the regions
An unexpected change in a cell's genetic makeup is called a ________.
Fill in the blank(s) with the appropriate word(s).
In the chemiosmotic synthesis of ATP in a chloroplast, H+ diffuses through ATP synthase
a. from the stroma into the thylakoid space b. from the thylakoid space into the stroma c. from the intermembrane space into the matrix d. from the cytoplasm into the intermembrane space e. from the matrix to the stroma