Which of the following substance is mismatched with its role in the body?
A. Vitamin D - obtained by synthesis or ingestion
B. Vitamin C - necessary for collagen synthesis
C. Sex hormones - cause spurt of growth at puberty
D. Vitamin D - aids calcium absorption
E. Parathyroid hormone - increases calcium loss in the kidneys
Answer: E
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When blood pH drops, the amount of oxyhemoglobin _____ and oxygen delivery to the tissue cells _____
a) Increases, increases b) Increases, decreases c) Decreases, increases d) Decreases, decreases e) Does not change, does not change
Well-ventilated alveoli usually receive more blood flow than more poorly-ventilated alveoli
Indicate whether the statement is true or false
Converting glucose into glycogen is the process of ________.
A. gluconeogenesis B. glycogenesis C. glycogenolysis D. lipogenesis
A bird hits the windshield of your car, and you reflexively duck and close your eyes. Which of the following is responsible for this action?
A. Medulla B. Superior colliculi C. Thalamus D. Cerebellum E. Reticular formation