Water channels in cells in the collecting duct are called ________.
Fill in the blank(s) with the appropriate word(s).
aquaporins
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Water molecules move across cells by
A) osmosis. B) primary active transport. C) secondary active transport. D) activity of the sodium-potassium pump. E) phagocytosis.
One important function of the intrinsic control of the heart (Frank-Starling law of the heart) is to maintain the left and right cardiac outputs in balance
Indicate whether the statement is true or false
A newly absorbed amino acids enters which of the following vessels leading to the hepatic portal veins?
A) Superior mesenteric vein B) Gastric veins C) Inferior vena cava D) Central vein
An MHC class II/antigen complex on the surface of an antigen-presenting cell (APC) binds to a T-cell receptor. What results from this interaction?
A. Other immune cells are inhibited B. The antigen is phagocytized by the T cell C. The T cell responds by directly destroying the APC D. Other immune cells are stimulated to respond to the antigen