The neurotransmitter receptor research of Jean-Luc Eiselé and his coworkers showed that ____
a. neurotransmitters are dependent on the activity of Na+
b. neurotransmitters are dependent on the activity of K+
c. neurotransmitters are dependent on the activity of Cl
ANSWER: e
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Which of the following is NOT a function of a signal recognition particle (SRP)?
A. Binds to a receptor in the endoplasmic reticulum (ER). B. Docks the ribosome over a channel protein. C. Helps a vesicle bud from the endoplasmic membrane (ER) D. Recognizes the endoplasmic membrane (ER) signal sequence
What is most closely associated with membrane-attack complexes (MACs)?
a. complement proteins b. helper T cells c. B cells d. histamines e. cytokines
Humans cultivate rice, wheat, rye, oats, and barley for their nutritious seeds. What part of the seed is traditionally used in flour for baking?
a. seed coat b. sporophyte c. endosperm d. embryo e. fruit
The health care professional bases her responses to Katrina’s questions about leukemia on the fact that leukemia is a/an:
a. hereditary form of hemolytic anemia in which the alpha or beta hemoglobin chains are defective and the production of hemoglobin is deficient, creating hypochromic microcytic RBCs b. malignant plasma cell neoplasm causing an increase in the number of both mature and immature plasma cells, which often entirely replace the bone marrow and destroy the skeletal structure. c. excessive uncontrolled increase of immature WBCs in the blood, eventually leading to infection, anemia, anddecreasing numbers of platelets. d. abnormal increase in the number of RBCs, granulocytes, and thrombocytes, leading to an increase in the volume and viscosity of the blood.