Hypertrophy of skeletal muscles from weight lifting is caused by an increase in the
A. number of muscle fibers.
B. size of muscle fibers.
C. number of striations.
D. number of nuclei within the muscle fibers.
E. number of muscle cells.
B
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In ________ transport, substances move across a plasma membrane without the expenditure of energy by the cell.
Fill in the blank(s) with the appropriate word(s).
When an acid and a base are combined, they form a salt and water. This type of reaction is called a(n) _____.?
A) ?negatively charged hydroxide ion B) ?neutralization C) ?ionization
Which of the following blood pressure readings would be considered prehypertension??
A) ?Less than 120/80 B) ?120-130/80-89 C) ?140-159/90-99 D) ?160 and above/100 and above
What would most likely happen if there were a decrease in the number of acetylcholine receptors in an NMJ?
A) decreased neurotransmitter release into the synaptic cleft B) increased sodium ion influx at the motor endplate C) decreased action potential generation at the motor endplate D) increased action potential generation at the motor endplate