What characteristic of the proteins that form red blood cells allows them to change shape and flow freely through the blood?
A) lack of quaternary structure B) long, narrow shape
C) globular shape D) spherical shape
C
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Calcium, phosphorus, magnesium, and fluoride mainly serve as structural components ofÂ
A. bones and teeth. B. the central nervous system. C. hair and fingernails. D. the skin.
Josephine is one of 20 participants in a clinical trial for a new weight loss drug. If Josephine receives a placebo rather than the actual drug, to which group does Josephine belong?
A) experimental group B) epidemiological group C) hypothesis group D) control group
A client's nutritional status has been severely compromised through prolonged episodes of nausea and vomiting. Which nutritional therapy will be the most effective in correcting nutritional deficits before surgery?
a. high-protein between-meal nourishment four times a day b. total parenteral nutrition (TPN) for several days c. IV infusion of normal saline solution at 125 mL/hour d. continuous enteral feedings at 200 mL/hour
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