Which transport process requires a carrier molecule but does not use cellular energy?
A. diffusion
B. facilitated diffusion
C. osmosis
D. active transport
E. endocytosis
B
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Calculate the mean arterial pressure (MAP) for each example listed.
A. a person with a blood pressure of 120/80 mm Hg B. a person with a blood pressure of 130/95 mm Hg
Glomerular filtration produces about 18 liters of fluid formed in twenty-four hours
Indicate whether the statement is true or false
What is responsible for initiating contraction of smooth muscle?
a. Stimulation by motor neurons b. Inhibition of acetylcholinesterase c. Membrane potential drifting to threshold as a result of automatic changes in ion movement across the membrane d. Excitation of the gap junctions by a transmitter substance e. Stimulation by the autonomic nervous system
Which gland is located in the sella turcica?
A. thymus B. adrenal C. pineal D. hypothalamus E. pituitary (hypophysis)