The effectiveness of some antibiotics, such as penicillin, is enhanced by preventing their excretion by use of ________.
A. xenobiotics
B. toxiporins
C. organic anion transporters
D. probenecid
Answer: D
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The synaptic knob of a neuromuscular junction is the portion of the muscle fiber that contains receptor sites for neurotransmitters.
Answer the following statement true (T) or false (F)
During exercise, the energy necessary to sustain skeletal muscle cell contraction comes from
A. conservation of glucose. B. decreased sympathetic nervous system activity. C. increased epinephrine and glucagon release. D. increased insulin production. E. storing glucose as glycogen.
Bile is produced by cells of the ________.
A. duodenum B. gallbladder C. pancreas D. liver E. hepatopancreatic ampulla
Which of the following is not considered a region of the spinal cord?
A. Sacral B. Lumbar C. Thoracic D. Cervical E. Pelvic