Which of these is an example of active transport?
A. Facilitated diffusion of K+
B. Transport of Na+ from a place of low concentration to a place of higher concentration
C. Diffusion of oxygen from a place of high concentration to a place of lower concentration
D. Transport of Cl- following its concentration gradient
E. Transport of glucose down its concentration gradient
Answer: B
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Which hormone inhibits the release of FSH from the pituitary gland?
a) Inhibin b) Relaxin c) GnRH d) hCG e) LH
When bicarbonate levels fall due to an accumulation of fixed acids in the body, the result is
A. metabolic alkalosis. B. respiratory alkalosis. C. respiratory acidosis. D. metabolic acidosis. E. insufficient respiration.
Epithelia are strong membranes that function to bind the body together.
Indicate whether the statement is true or false.
What occurs when the head is in the normal, upright position?
a. Receptor output increases. b. The otoliths are shifted to the side. c. The otoliths push the hair cell processes down. d. Otoliths distort the hair cell processes.