A temporary oxygen deficit during strenuous exercise causes a muscle to
A) synthesize muscle proteins in response to steroid hormone stimulation.
B) synthesize glycogen.
C) ferment pyruvate to lactate.
D) switch to aerobic glycolysis.
E) synthesize more NAD+.
Answer: C
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The epithelial cells in the skin of an animal have 24 chromosomes. How many chromosomes are present in the gametes of this animal?
A. 6 B. 12 C. 24 D. 48
Energy released by the electron transport chain is used to pump H+ ions into which location?
A. cytosol B. mitochondrial matrix C. mitochondrial inner membrane D. mitochondrial outer membrane E. mitochondrial intermembrane space
Which of the following describes the exchange of gases between a respiratory surface and the
circulatory system?
a. ventilation b. cellular respiration c. perfusion d. bulk flow e. physiological respiration
The organ of Corti contains receptors that signal in response to _____
a. heat c. light b. sound d. pheromones