The primary function of cellular respiration is to ________
A) break down food molecules and generate ATP
B) provide the body with adequate amounts of vitamins and minerals
C) efficiently monitor the energy needs of the body
D) determine the amount of heat needed by the human body
A
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The "control center" of the cell is the ________.
A. ribosome B. nucleus C. mitochondrion D. endoplasmic reticulum E. plasma membrane
The function of the biceps femoris is to
A. adduct the thigh and extend the knee. B. flex the thigh (with no action at the leg). C. extend the thigh and flex the leg. D. flex the thigh and extend the leg. E. flex the hip and ankle.
The cells that secrete glucagon are located in the:
What will be an ideal response?
Which of the following events is NOT a characteristic of an action potential?
A. In repolarization, K+ flow out of the cell. B. As Na+ enter, the inside of the plasma membrane becomes more negative. C. The plasma membrane becomes highly permeable to Na+ and depolarization results. D. At the peak of depolarization, Na+ channels begin to close and K+ channels open. E. Action potentials occur according to the all-or-none principle.