A graded change in membrane potential within a sensory receptor cell is always called a(n)
A) action potential.
B) receptor potential.
C) hyperpolarization.
D) depolarization.
B) receptor potential.
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The largest human cell is about how much larger than the smallest human cell?
a. about 20 times larger b. about 10 times larger c. about 5 times larger d. about twice as large
The specialized cells found in the capsule epithelium are called ________. These cells have long cytoplasmic extensions called ________.
Fill in the blank(s) with the appropriate word(s).
What is the functional unit of the kidney that filters blood and forms urine?
A) glomerulus B) nephron C) renal pyramid D) renal pelvis
The membrane of a contractile cardiac muscle cell contains
A. fast voltage-gated sodium channels and slow voltage-gated calcium channels. B. fast voltage-gated sodium channels and fast voltage-gated calcium channels. C. slow voltage-gated sodium channels and fast voltage-gated calcium channels. D. slow voltage-gated sodium channels and slow voltage-gated calcium channels.