What are active-transport mechanisms commonly called?
a. bridges
b. pumps
c. couriers
d. funnels
e. engines
b
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The central chemoreceptors for respiration are located in the ________; they monitor the blood concentration(s) of ________.
A. aortic and carotid arteries; oxygen B. pons; carbon dioxide and hydrogen ions C. medulla oblongata; oxygen D. pons; oxygen E. medulla oblongata; carbon dioxide and hydrogen ions
Which of the following changes would effect the longest lasting changes in blood pressure?
A. Release of norepinephrine B. Release of antidiuretic hormone C. Increased heart rate D. Release of angiotensin
Filtration is the movement of molecules through a membrane
A) by hydrostatic pressure that is greater on one side of the membrane than on the other. B) from low osmotic pressure to high osmotic pressure. C) from low concentration to high concentration. D) from low to high hydrostatic pressure.
Bone is ________ tissue
A) dead connective B) dead epithelial C) living connective D) living epithelial E) living muscle