What happens when a neurotransmitter is released by a presynaptic cell?
a. It causes calcium to rush into the presynaptic neuron.
b. It causes calcium to rush into the postsynaptic neuron.
c. The neurotransmitter passively spreads across the synaptic cleft.
d. The neurotransmitter is actively transported across the synaptic cleft.
Question 2
In comparison to activating effects, organizing effects of hormones take place ____.
a. later in life and produce more long-lasting effects
b. later in life and produce more temporary effects
c. earlier in life and produce more long-lasting effects
d. earlier in life and produce more temporary effects
Structure of a typical prokaryotic cell
Mechanism that specify cell fate
Many physicians use cell phones to stay in touch with their offices.
L-type calcium channel: (a) Calcium channel opens when an action potential passes across the ...
The cell membrane.
HIV cycle in an infected cell: (a) latent infection; (b) active infection.