Which of these hormone pairs have antagonistic (opposite) effects?
A. Melatonin and insulin
B. Oxytocin and follicle-stimulating hormone
C. Antidiuretic hormone and growth hormone
D. Thyroxine and triiodothyronine
E. Calcitonin and parathyroid hormone
Answer: E
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In response to respiratory alkalosis, the
A) respiratory rate increases. B) tidal volume increases. C) kidneys conserve bicarbonate. D) kidneys secrete more hydrogen ions. E) kidneys retain more hydrogen ions.
Match the cell type with the hormone produced by that cell type.A. MineralocorticoidsB. PTHC. InsulinD. ADHE. T3Neurosecretory cells
Fill in the blank(s) with the appropriate word(s).
The basic steps of an enzyme-catalyzed reaction are
A. substrate and enzyme combine, forming an E-S complex. The reaction occurs, products are released, and the unchanged enzyme is released and recycled. B. substrate, enzyme, and product combine, forming an S-E-P complex. The reaction occurs, products are released, and the unchanged enzyme is released and recycled. C. substrate and product combine, forming an S-P complex. The reaction occurs, enzymes are released, and the unchanged substrate is released and recycled. D. enzyme and product combine, forming an E-P complex. The reaction reverses, enzymes are released, and the unchanged substrate is released and recycled.
Hemoglobin
A. gives white blood cells their color. B. transports oxygen in the blood. C. is normally found in both the plasma and erythrocytes. D. catalyzes the reaction that forms carbonic acid. E. is only used once then decomposed.