How does the circulatory system work to provide body cells with nutrients?
What will be an ideal response?
Epithelial cells called enterocytes cover the villi. They have smaller projections called microvilli, referred to collectively as the brush border, which trap nutrients and absorb them into the enterocyte interior. There, the nutrients enter blood and lymphatic vessels that transport them throughout the body. Enterocytes also secrete several enzymes that help digest specific nutrients. To regulate blood sugar levels, the pancreas releases hormones such as insulin or glucagon into the bloodstream.
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What assessment tool is designed to measure how well a diet meets the recommendations of the Dietary Guidelines?
a. Healthy Eating Index b. Supplemental Nutrition Assistance Program c. Dietitian's Comparative Effectiveness Plan d. U.S. Public Health Nutrient Assessment Barometer e. U.S. Preventive Services Task Forge Guide
Energy for the brain is derived from what source?
a. amino acids b. proteins c. glucose d. fats
Which of the following is NOT required to be listed on the Nutrition Facts panel?
A. the list of ingredients B. grams of carbohydrates, fat, and protein C. percent daily values (%DV) D. serving size and servings per container
For which nutrient is the DRI (i.e., RDA/AI) increased for people who smoke cigarettes?
a. Selenium b. Vitamin C c. Vitamin E d. Beta-carotene