Which statement describes cytoplasmic vesicles?
A) They are formed by all types of endocytosis.
B) They have a membrane that is very different from the plasmalemma.
C) They never contain extracellular fluids.
D) They only contain solids.
E) Contents are toxic to the cell.
A) They are formed by all types of endocytosis.
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Reduced vitamin B12 absorption from the small intestine due to reduced intrinsic factor production in the stomach results in condition called
a) hemorrhagic anemia. b) aplastic anemia. c) megaloblastic anemia. d) pernicious anemia. e) iron deficiency anemia.
Which of the following statements regarding NK cells is a false or incorrect statement?
A) NK cells attack cells that display abnormal or lack MHC antigens. B) NK cells are a type of neutrophil. C) NK cells attack cancer cells and virus-infected body cells. D) NK cells are present in the blood, spleen, lymph nodes, and red bone marrow.
The pancreas functions as part of the endocrine system and as a part of the
______ system. Fill in the blank(s) with correct word
In order to be palpated to obtain the pulse, an artery must be
A. close to the heart. B. superficial, with firm tissue beneath it. C. above the knee. D. at least 1/2 inch in diameter. E. superficial and above the knee.