Which function of proteins is NOT correctly matched with the example?
A. structure – collagen and keratin
B. regulation – enzymes and hormones
C. transport – hemoglobin
D. contraction – actin and myosin in muscles
E. protection – packing around organs and glands
E
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The efferent division of the peripheral nervous system innervates ________ cells
A) skeletal muscle B) smooth muscle C) heart muscle D) glandular E) All of the answers are correct.
The role of inhibin in male reproduction is to
A) decrease the production of testosterone. B) keep testosterone levels high inside the seminiferous tubule. C) stimulate the testes to descend. D) stimulate spermiogenesis. E) provide negative feedback regulation of FSH and GnRH secretion.
Removal of excess water in urine is known as ________.
Fill in the blank(s) with the appropriate word(s).
The function of the paranasal sinuses is to
A. act as a resonating chamber. B. produce mucus. C. reduce the weight of the skull. D. influence the quality of the voice. E. All of these are functions of the paranasal sinuses.