The bulk uptake of material by the formation of a vesicle is called ________.
A. active transport
B. osmosis
C. endocytosis
D. facilitated diffusion
E. diffusion
Answer: C
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Cardiovascular effects of the sympathetic division include all of the following EXCEPT ________
A) weak dilation of the blood vessels of skeletal muscles during exercise B) increase of heart rate and force C) dilation of the blood vessels serving the skin and digestive viscera D) constriction of most blood vessels
Select the correct statement about a ribosome
a. It contains DNA. b. It synthesizes amino acids. c. It is often functional while attached to a nonmembranous organelle. d. It contains proteins that are synthesized at other ribosomes. e. All of the above statements are correct.
If the ECF's osmolarity increases,
a. water will shift from the ICF into the ECF b. water will not shift between the ECF and the ICF c. water will shift from the ECF into the ICF d. vasopressin secretion will decrease e. sodium excretion will decrease
Which of the following statement is false when comparing neurons and muscle tissue?
A) Muscle tissue and nerves are both excitable. B) Muscle tissue and neurons both have a resting membrane potential. C) Muscle tissue and neurons both have refractory periods. D) Resting membrane potentials are greater (more positive) in muscle compare to neurons. E) Action potentials last longer in muscle tissues compared to neurons.