Which of the following minerals is part of the hemoglobin molecule?
A. Iron
B. Fluorine
C. Iodine
D. Calcium
E. Zinc
Answer: A
Anatomy & Physiology
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The enzyme ATPase occurs in the globular portion of myosin molecules.
Answer the following statement true (T) or false (F)
Anatomy & Physiology
Aldosterone is a steroid hormone that ________ synthesis of Na+/K+ pumps and Na+ channels in principal cells of kidney tubules.
A. inhibits B. stimulates
Anatomy & Physiology
What do pheromones stimulate?
A. Olfactory cells B. Supporting cells C. Hair cells D. Olfactory glands E. Taste cells
Anatomy & Physiology
The sarcolemma is the
A. cell membrane of a muscle fiber. B. cytoplasm of muscle cells. C. structural and functional unit of the skeletal muscle cell. D. contractile thread that extends the length of the muscle fiber. E. protein strand composed of actin.
Anatomy & Physiology