Nursing Elites

1. Which of the following statements is correct about MyPlate?

• A. Canned fruit can be considered part of the fruit group
• B. Soymilk is considered part of the dairy group
• C. Beans and peas are considered part of both the protein group and the vegetable group
• D. Cream cheese and butter are not part of the dairy group

Correct answer: C

Rationale: According to the MyPlate guide, beans and peas are classified as part of both the protein and vegetable groups due to their high protein content and the nutrients they share with vegetables. This makes Choice C correct. Choice A is incorrect as canned fruit can be part of the fruit group if it's canned in water or 100% fruit juice. Soymilk is considered part of the dairy group, making Choice B incorrect. While cream cheese and butter are dairy products, they are not part of the dairy group on MyPlate because they contain little to no calcium, making Choice D incorrect.

2. Select all that apply. Which of the following are true about protein digestion?

• A. the end products of protein digestion are amino acids
• B. protein/polypeptides are digested in the large intestine by trypsin
• C. A, D
• D. protein/polypeptides are digested in the stomach by pepsin

Correct answer: C

Rationale: Protein digestion begins in the stomach with the enzyme pepsin, which breaks down proteins into smaller polypeptides. The end products of protein digestion are amino acids.

3. Each statement is true of calcium within saliva, except one. Which is the exception?

• A. Saliva is supersaturated with calcium.
• B. Saliva is a source of calcium to mineralize an immature or demineralized enamel surface.
• C. Calcium and phosphate in saliva provide a buffering action.
• D. Calcium within saliva increases dental caries.

Correct answer: D

Rationale: The correct answer is D. Calcium within saliva does not increase dental caries; in fact, the buffering action provided by calcium and phosphate in saliva inhibits caries formation by preventing the dissolution of enamel by plaque biofilm. Choice A is correct as saliva is indeed supersaturated with calcium. Choice B is correct as saliva serves as a source of calcium to mineralize an immature or demineralized enamel surface. Choice C is correct as calcium and phosphate in saliva do provide a buffering action to protect teeth from acids.

4. What activities best describe the work of the placenta during pregnancy?

• A. surrounding and cushioning the fetus
• B. combining maternal and fetal blood stores to exchange nutrients
• C. producing hormones that maintain the pregnancy
• D. absorbing vitamins and minerals that can be transferred to the fetus

Correct answer: C

Rationale: The placenta plays a crucial role in producing hormones that are necessary for maintaining pregnancy, supporting fetal development, and preparing the mother's body for childbirth. Choices A, B, and D are incorrect because the placenta's primary function is not to surround and cushion the fetus, combine blood stores for nutrient exchange, or absorb vitamins and minerals. While the placenta does facilitate the exchange of nutrients and oxygen between the mother and fetus, its hormone production is the most critical function during pregnancy.

5. List 2 Dispensable amino acids

• A. Alanine
• B. Serine
• C. Glycine
• D. Proline

Correct answer: A

Rationale: Dispensable amino acids, such as alanine and serine, can be synthesized by the body and are not required to be obtained from the diet.

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