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
Attachment of transmembrane proteins to the cytoskeleton and extracellular matrix of an animal cell.
Cell Biology
Comparison of normal and sickle cell red blood cells.
HIV cycle in an infected cell: (a) latent infection; (b) active infection.
Animal cell cytoskeleton
(a) Chromosome painting with five different-colored markers in a normal cell. (b) Painting produces