Receptor-mediated endocytosis
A) is a type of secretion.
B) imports target molecules after they bind to membrane proteins.
C) does not require energy from the cell.
D) can only move a substance down its concentration gradient.
E) imports extracellular fluid, including all of its dissolved molecules.
B
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A cartilaginous joint that does permits movement is (a)
A) synostosis. B) synovial joint. C) symphysis. D) synchondrosis. E) None of the answers are correct.
Which of the following categories of hypertension drugs lower blood pressure by blocking formation of angiotensin II, which results in vasodilation and decreased aldosterone secretion?
a) Diuretics b) ACE inhibitors c) Beta blockers d) Calcium channel blockers e) Anabolic steroids
Homeostasis is the body's maintenance of an unstable internal environment
Indicate whether the statement is true or false
Lymphoid functions of the spleen include
A) phagocytosis of damaged or infected cells circulating with the blood. B) addition of many new NK cells to the circulation. C) production of B and T cells. D) maturation of T cells. E) All of the answers are correct.