The leading theory for maintenance of body weight as a result of long-term matching of food intake to energy expenditure relates to the
a. amount of fat stored in adipose tissue.
b. extent of glucose utilization.
c. magnitude of cellular ATP production.
d. extent of gastrointestinal distention.
e. extent of behavioral modification associated with eating habits.
A
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During reduction, a molecule or atom ________.
gains protons or gains electrons loses protons or gains electrons gains protons or loses electrons loses protons or loses electrons
Which of the following statements concerning vitamin D is false?
A. Vitamin D causes the kidney to excrete calcium. B. Vitamin D is necessary for the uptake of calcium from the intestine. C. Vitamin D begins its synthesis in the skin when the skin is exposed to ultraviolet light. D. Vitamin D is important for calcium homeostasis. E. Vitamin D is necessary for the formation of bones and teeth.
The outermost connective-tissue covering of nerves is the
A) endoneurium. B) endomysium. C) perineurium. D) epineurium. E) epimysium.
Which statement about the parasympathetic nervous system is true?
A. Parasympathetic nerves initiate erection in response to visual stimuli and sexual thoughts. B. Fibers arising in the sacral division cause dilation of penile blood vessels and engorgement of erectile tissue. C. Parasympathetic nerves stimulate contraction of smooth muscle in the walls of the epididymis and ductus deferens during emission. D. Parasympathetic nerves constrict the penile arteries when the penis is directly stimulated. E. Parasympathetic fibers arise from T12 to L2 and pass through the hypogastric and pelvic nerve plexuses.