A major factor influencing BMR is:
a. hunger.
b. food intake.
c. body composition.
d. physical activity.
Ans: c. body composition.
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What segment of the U.S. population is expected to see the biggest percentage increase by the year 2040?
a. 18 to 64 years b. 65 to 84 years c. 85 years and older d. Younger than 18 years
During _____, special carriers transport substances across cell membranes.
Fill in the blank(s) with the appropriate word(s).
An emulsion contains
A. the dispersed or discontinuous phase, which is usually oil. B. the dispersion medium or continuous phase, which is usually an organic solvent. C. a stabilizing compound that increases a liquid's surface tension to reduce its wetting ability. D. All of these are correct. E. None of these are correct.
Which of the following statements regarding fat loading strategies is FALSE?
A. As compared to carbohydrate intake, research indicates that medium chain triglyceride (MCT) supplementation does not enhance endurance performance B. Although some studies suggest chronic fat loading may spare use of muscle glycogen during endurance exercise, in general exercise scientists conclude that the technique is not an effective ergogenic aid for endurance athletes C. Carnitine supplementation has been shown to be a very effective dietary strategy to enhance endurance performance, particularly in events such as marathon running D. Acute fat loading, such as consuming a meal high in fat before exercise, has not been shown to enhance prolonged endurance performance E. Omega-3 fatty acids have been hypothesized to enhance endurance performance, but research studies are not supportive of an ergogenic effect