Which of the following is (are) true regarding gastric
bypass surgery?
a. It is an unusually safe surgical procedure.
b. It is known to stimulate the production of leptin.
c. It may inhibit the production of ghrelin.
d. It causes food to bypass the stomach and go
directly to the small intestine.
e. None of these are true.
Answer: c
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Herpesviruses can cause all of the following diseases in humans EXCEPT
A) cancer. B) chicken pox. C) cold sores. D) spongiform encephalopathy.
Which of the following organisms can use the process of lactic acid fermentation when oxygen concentrations are low?
a. yeast b. plants c. humans d. fish
Which of the following exhibits fourth level (quaternary) structure?
a. amino acids b. lipids c. glycogen d. hemoglobin e. complex carbohydrate
____________________ is a vascular tissue that conducts water and dissolved minerals.
A. Phloem B. Mesophyll C. Epidermal D. Xylem E. Sclerenchyma