After being released, neurotransmitters bind to receptors on the
A) postsynaptic membrane.
B) neuromodulators.
C) synaptic cleft.
D) synaptic vesicle.
Ans: A) postsynaptic membrane.
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The function of the choroid layer of the eye is to ________
A) release tears onto the anterior surface of the eye B) refract light and focus it on the retina C) regulate the amount of light entering the eye D) produce gross eye movements E) prevent light from scattering inside the eye
When do cells divide? select all that apply.
a) when they grow large enough to have enough cytoplasm to distribute to their two daughter cells b) when neighboring cells die, opening up space in a tissue to be occupied by new cells c) when they snugly contact neighboring cells or when nutrients or growth factors are withdrawn d) when they have replicated their DNA, so they can give each daughter cell a duplicate set of genes
Given that hepatocytes carry out much of the lipid synthesis of the body, including the manufacture of cholesterol and phospholipids, what organelle would you expect to be particularly abundant in these cells?
A. Mitochondria B. Lysosomes C. Golgi apparatus D. Ribosomes E. Smooth endoplasmic reticulum
Compared to other types of lipoproteins, very-low-density lipoproteins contain the _______ lipid
A. most B. least