Physical activity has been shown to increase steadily throughout adolescence.
Answer the following statement true (T) or false (F)
False
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Which of the following individuals is maintaining a healthful weight?
A. Evita is 5'1" tall and weighs 100 pounds. In order to maintain this weight, she follows a strict macrobiotic diet, weighing her food and calculating her kcal intake. She also works out daily for at least 60 minutes a session. B. Raylene is 5'3" tall and weighs 150 pounds. Throughout high school, she participated in basketball and track, and weighed about 30 pounds less than she does now. Since starting college, her weight has slowly crept upward, probably because she snacks excessively while studying and no longer participates in sports. Her only regular physical activity is walking between buildings on campus. She is very unhappy with her current weight. C. Zach is 5'7" tall and weighs 150 pounds. His male relatives are all short, small-boned, and thin. Zach is determined to bulk up, so he works out with weights six days a week, eats a high-protein diet, and takes an illegal steroid supplement he obtains from a bodybuilding friend. D. Sandeep is 5'9" tall and weighs 150 pounds. He is a busy pre-med student, but he makes it a habit to walk the 2 miles to and from campus each day, and takes a twice-weekly power-yoga class. Sandeep's blood pressure is 110/70, and his blood glucose and blood lipids are normal.
Which of the following statements is true of nutrient absorption?
A) Nutrients are absorbed in the enterocytes that line the villi in the small intestine. B) Human body absorbs 100 percent of all the nutrients consumed in food. C) Nutrient absorption is solely facilitated by a carrier-mediated active transport mechanism. D) The vast majority of nutrients are absorbed in the lining of the stomach.
Which of the following is used to supply some of the fuel needed by the brain only after the body has been fasting for a while?
a. Ketones b. Glycerol c. Fatty acids d. Amino acids
Environmental factors seldom affect the risk of developing obesity if an adolescent is genetically predisposed to obesity
a. True b. False Indicate whether the statement is true or false