Vasodilation in skeletal and cardiac muscle tissue results from the signal molecule _____ binding to ______ receptors
A. Epinephrine; beta 2
B. Epinephrine; alpha
C. Acetylcholine; beta 2
D. Acetylcholine; alpha
Answer: A. Epinephrine; beta 2
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A. somatic impulses. B. parasympathetic impulses. C. sympathetic impulses. D. sensory impulses.
People who live in a Scandinavian country—Norway, Sweden, or Finland—may have bigger problems with porous bone or osteoporosis. Remember that the extreme northern and southern latitudes of the earth get less direct sun. How is porous bone in any way related to sun exposure?
What will be an ideal response?
Compartmentation refers to
A) pairing together isozymes that perform similar reactions. B) dividing metabolic reactions into groups for better understanding. C) separating substrates into chemical classes. D) grouping related enzymes into specific organelles.
Which is the fastest way to supply energy to muscle fibers?
A. Fermentation B. Creatine phosphate breakdown C. Cellular respiration