Which of the following plays a central role in stimulating the secretion of the hormone gastrin?
A. Distention of the stomach
B. The hormone cholecystokinin (CCK)
C. Histamine
D. An increase in [H+] in the lumen of the stomach
E. The hormone secretin
Answer: A
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Basophils release __________, a vasodilator that increases blood flow to damaged tissues.
Fill in the blank(s) with the appropriate word(s).
What is a predicted outcome of a severe homeostatic disruption?
a. death b. feedforward activity c. cellular uptake d. enhanced sensation e. adaptation
Which of the following is NOT true of catalysts?
They are unchanged by the reaction catalyzed. They allow endergonic reactions to become exergonic reactions. They increase the amount of energy released by a chemical reaction. They lower the activation energy of the reaction.
Which set of muscles is primarily used when doing bar chin-ups?
A) Biceps femoris muscle B) Biceps brachii muscle C) Deltoid muscle D) Triceps brachii muscle