The amount of matter in an object is its ________.
A. element
B. ionic charge
C. mass
D. atomic number
E. weight
Answer: C
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The ________ gland is divided into posterior and anterior segments.
A. thyroid B. thymus C. pituitary D. adrenal
The vitamin that is a coenzyme in amino acid and lipid metabolism is
A) vitamin B6 (pyridoxine). B) vitamin B5 (pantothenic acid). C) vitamin B2 (riboflavin). D) vitamin B9 (folic acid). E) niacin (nicotinic acid).
Which of the following is not a function of the Na+-K+ pump?
A. Heat production B. Secondary active transport C. Regulation of cell volume D. Transport of Na+ into the cell and K+ out of the cell E. Maintenance of membrane potential
Neurotransmitters that cause skeletal muscle contraction are normally stored in
A) myofibrils. B) motor neuron axon terminals. C) motor units. D) motor end plates. E) actin.