Which one of the following statements is true about MHC II proteins?
a) They are on dendritic cells.
b) They are found on both prokaryotic and eukaryotic cells.
c) They must be secreted to neutralize antigens.
d) They are found on T cells
Answer: a) They are on dendritic cells.
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a. B cells b. Macrophages c. Helper T cells d. Mast cells e. Cytotoxic T cells
Postsynaptic potentials are graded potentials, in which the membrane potential increases or decreases to a greater or lesser degree
1.True 2.False
Excessive consumption of calcium, and high calcium levels in the blood will likely cause ____________.
a. raising levels of aldosterone b. lowering levels of parathyroid hormone c. lowering secretion of vasopressin d. decreasing atrial natriuretic hormone
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Fill in the blank(s) with the appropriate word(s).