A graded potential is one that
A. lasts for several seconds after ion channels have opened, closed, and reset.
B. travels the length of the nerve fiber (is long-distance).
C. varies in size depending on the magnitude of the stimulus (larger voltage change for stronger stimulus).
D. is all or none (always the same intensity).
Answer: C
You might also like to view...
The __________ is a U-shaped bone that sits above the larynx yet does not articulate with any other bone.
A. hyoid bone B. mandible C. maxilla D. zygomatic bone
An example of incomplete dominance is
a) ABO blood groups b) Sickle-cell disease c) Angelman Syndrome d) Prader-Willi Syndrome e) PKU
Which of the following accurately describes the thick ascending limb of the loop of Henle?
A) impermeable to water and contains Na+/K+/Cl- cotransporters B) permeable to water in the presence of specific hormones C) permeable to water and does NOT contain Na /K /Cl cotransporters D) impermeable to water and does NOT contain Na+/K+/Cl- cotransporters E) permeable to water and contains Na+/K+/Cl- cotransporters
Which of the following is an action of the parasympathetic division of the ANS?
A. Constricts bronchioles B. Speeds up the heart C. Stimulates the liver to release glucose D. Inhibits salivation