Free radicals ________.
A. may be very reactive with body tissues
B. are not linked to DNA damage and the development of cancer
C. can be neutralized only by taking beta-carotene or vitamin E supplements
D. contain two electrons in the outer orbit
Answer: A
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Mike is a 40-year-old male who is concerned about his cardiovascular health. His mother and grandfather have both had heart attacks. Mike has had his cholesterol measured at 250 mg/dL, his HDL-cholesterol is 45 mg/dL, and his triglycerides were 300 mg/dL. His diet consists of a high-sugar granola breakfast cereal with whole milk, ham and American cheese on white bread for lunch, pretzels for
snack, and pepperoni pizza, steak, or cheese burgers for most dinner meals. He also enjoys drinking beer several times a week, typically consuming 5-6 beers each time. Mike currently does not exercise but enjoys playing golf, swimming, and weight lifting. His job is moderately active and involves long periods of standing, which complicates his chronic back pain. Recently Mike has been considering making some dietary and lifestyle modifications to improve his cardiovascular health and reduce his cholesterol. Answer the following question(s) to help Mike make healthy changes to improve his diet and lifestyle. What type of dietary fat should Mike aim to increase in his diet to help lower his LDL-cholesterol while not lowering his HDL-cholesterol? A) Polyunsaturated fat B) Monounsaturated fat C) Saturated fat D) Trans fat
On average, about _____ of a teenager’s total daily energy intake comes from snacks
1.25% 2.33% 3.50% 4.10% 5.65%
Registered dietitian nutritionists recommend feeding babies
A. fat-free milk when they are 10 to 12 months of age. B. only breast milk until the infants are 6 months of age. C. solid foods by the time the infants are 2 months of age. D. fresh fluid cow's milk by the time they are 6 months of age.
Riboflavin coenzymes function in a variety of metabolic pathways, such as
A. the electron transport chain. B. beta-oxidation of fatty acids. C. the citric acid cycle. D. All of these choices are accurate.