Which of the following membrane transport mechanisms is not directly a passive process?
A) diffusion
B) facilitated diffusion
C) secondary active transport
D) osmosis
E) active transport
Answer: E
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Which of the following is a solid structure?
A) medullary cavity B) lacuna C) central canal D) canaliculus E) trabecula
Using a micropipette, a neuroscientist injects an axon with enough Na+ ions to move the membrane potential +25mV (from resting). What happens next?
A. Na+ channels will all be inactivated. B. Voltage-gated Na+ will be triggered to open. C. The neuron membrane will be hyperpolarized. D. The membrane potential will be at the Na+ equilibrium potential. E. None of the answer choices are correct.
Compare benign prostatic hypertrophy with prostate cancer
A) Benign prostatic hypertrophy affects the seminal glands in addition to the prostate whereas prostate cancer just affects the prostate gland. B) Benign prostatic hypertrophy affects young men whereas prostate cancer affects older men. C) Benign prostatic hypertrophy affects older men whereas prostate cancer affects young men. D) Benign prostatic hypertrophy is an enlargement of the prostate whereas prostate cancer is a malignancy. E) Benign prostatic hypertrophy is a malignancy whereas prostate cancer is a shrinkage of the prostate gland.
________ is characterized by an increased airway resistance and decreased ventilation.
Fill in the blank(s) with the appropriate word(s).