All of the following are true regarding phytochemicals EXCEPT:
a. they are considered essential nutrients.
b. there are thousands of them in plants.
c. the body cannot make them.
d. they are not easily destroyed by cooking or storage.
a
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Which of the following statements is true?
A. Pregnant women, very young children, and people who have weakened immune systems have high risk of food-borne illness. B. In the United States, most fruits, vegetables, mushrooms, and deli meats undergo irradiation to preserve them. C. In the United States, molds and protozoa are responsible for most cases of food-borne illness. D. Sulfites are added to grain products during the enrichment process.
Devin is a 5-year-old who is a very picky eater. His doctor has measured his BMI to be in the 10th percentile for height and weight. His mother and father are both average-sized adults. Devin's mother is very concerned about Devin's picky nutritional behavior. Devin has recently not been eating his normal volume of food and he has only been eating a few of his favorite foods. Despite his small
body type Devin is very physically inactive and spends most of his free time watching cartoons or playing on the computer. Devin's father feels comfortable with Devin's current level of physical activity because he is underweight; however, Devin's mother feels that he needs to be getting more exercise to help develop good lifestyle habits for the future. Answer the following question(s) to help Devin's parents learn more about childhood nutrition and fitness guidelines. Devin currently prefers sweet-tasting foods only. Which of the following snack foods might fulfill his desire to eat sweet foods and also provide good nutrition? A) Ice cream B) Homemade chocolate chip cookies C) Sliced apples dipped in creamy peanut butter D) Unsalted whole-wheat pretzels
With regards to energy metabolism, which of the following statements is true about fatty acids?
a. They cannot make glucose. b. They can make glucose. c. They enter the same energy pathway as glucose. d. They can convert to lactate. e. They are metabolized via the Cori cycle.
What is the difference between the processes of nutrient absorption by simple diffusion versus active transport?
A) ?Nutrients absorbed by active transport cross freely into intestinal cells, while nutrients absorbed by simple diffusion move against their concentration gradient, which requires energy. B) ?Nutrients absorbed by simple diffusion cross freely into intestinal cells, while nutrients absorbed by active transport move against their concentration gradient, which requires energy. C) ?Nutrients absorbed by simple diffusion need a specific carrier molecule to transport them into intestinal cells, while nutrients absorbed by active transport move against their concentration gradient, which does not require energy. D) ?Nutrients absorbed by simple diffusion cross freely into intestinal cells, while nutrients absorbed by active transport need a specific carrier molecule to transport them into intestinal cells, which does not require energy.