Researchers believe people may have as many as _____ olfactory receptors.
A. 100,000
B. 1 million
C. 1 billion
D. 1 trillion
Answer: D
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Which of the following functions is performed by proteins in the body?
a) acid base balance (pH) b) fluid balance. c) chemical catalysts (enzymes). d) All answer choices are correct.
Water is involved in all of the following except:
a. regulating body temperature. b. converting lipids to amino acids. c. serving as a solvent for minerals and vitamins. d. acting as a lubricant around joints.
What is the most satiating macronutrient?
a. Fat b. Water c. Protein d. Carbohydrate e. Foods high in carbohydrates and fat
Jim went for his annual medical check-up and was diagnosed with heartburn. Which of the following actions is most likely causing Jim's condition?
a. Inhibition of peristalsis b. Overactive cardiac sphincter activity c. Overactive pyloric sphincter activity d. Defective lower esophageal sphincter activity