When glucose is metabolized in the absence of oxygen, one of the end products is
A. pyruvic acid.
B. ketone bodies.
C. lactic acid.
D. citric acid.
E. nitric acid.
C
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Jill lives in St. Louis, which is close to sea level. She decides to spend a month of her summer vacation working in the mountains outside of Denver. After a week in the mountains, what kinds of changes would you expect to see as Jill adapts to the higher altitude?
A) decreased alveolar ventilation rate B) decreased blood pressure C) decreased hematocrit D) decreased PO2 in the alveoli E) All of the answers are correct.
What response is triggered when the parasympathetic system is dominant?
a. muscle building response b. fight or flight response c. hiding response d. rest and digest response e. sleep response
________ include organic molecules, vitamins, and minerals that the body needs for growth and maintenance.
Fill in the blank(s) with the appropriate word(s).
Pepsinogen
A. is secreted by parietal cells. B. is activated by salivary amylase in swallowed food. C. is packaged in zymogen granules. D. operates optimally at a pH of 5 or more. E. helps to form peptide bonds.