Nokea
With which of the following should fluoride supplements never be taken?
- A. Water
- B. Juice
- C. Milk
- D. Soda
Correct Answer: C
Rationale: Fluoride supplements should never be taken with milk because the fluoride binds with the calcium in the milk, thereby reducing the effectiveness of the fluoride supplement. Other beverages like water, juice, or soda do not share this characteristic as they do not contain the same level of calcium as milk. The rationale behind choosing milk as the correct answer is that it hampers the effectiveness of fluoride supplements, whereas the other choices do not.
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According to the dietary reference intakes, what percentage of your daily calorie intake should ideally come from carbohydrates?
- A. 10-35%
- B. 20-35%
- C. 40-50%
- D. 45-65%
Correct Answer: D
Rationale: Carbohydrates should ideally make up 45-65% of your total daily caloric intake, according to the Dietary Reference Intakes (DRIs). This range provides the necessary energy for bodily functions and activities. Choices A, B, and C are incorrect because they fall outside the recommended range for carbohydrate intake based on the DRIs.
What food would most likely be included in Level 1 of the National Dysphagia Diet?
- A. peanut butter
- B. oatmeal
- C. fruit preserves
- D. plain yogurt
Correct Answer: D
Rationale: The correct answer is D, plain yogurt. Level 1 of the National Dysphagia Diet includes pureed or smooth foods that are easy to swallow. Plain yogurt fits this criteria as it is smooth and can be easily consumed without posing a risk of choking. Choices A, B, and C are not typically included in Level 1 of the diet. Peanut butter, oatmeal, and fruit preserves are not usually suitable for individuals on Level 1 of the National Dysphagia Diet as they may present a choking hazard or are not in a pureed or smooth form.
Which of the following are examples of mechanical digestion? Select all that apply.
- A. Heat
- B. Segmentation
- C. Option B and D
- D. Peristalsis
Correct Answer: C
Rationale: Mechanical digestion involves physical movements that break down food in the digestive tract. Segmentation (choice B) and peristalsis (choice D), which are both movements of the muscles in the digestive tract, are examples of this type of digestion. Heat (choice A), on the other hand, is related to chemical digestion, not mechanical digestion. Therefore, choice C (Option B and D) is the correct answer as it includes both examples of mechanical digestion provided in the choices. Choices A and D are incorrect because heat (choice A) is not a mechanical digestion process, and peristalsis (choice D) is a movement that helps propel food along the digestive tract but is not directly involved in breaking down food physically.
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.
Which enzyme initiates protein digestion in the stomach?
- A. Pepsin
- B. Salivary Amylase
- C. CCK
- D. Secretin
Correct Answer: A
Rationale: Pepsin is the enzyme that initiates protein digestion in the stomach. It breaks down proteins into smaller peptides, aiding in their further digestion and absorption in the intestines. Salivary Amylase (Choice B) functions in breaking down dietary carbohydrates in the mouth, not proteins. CCK (Choice C) and Secretin (Choice D) are hormones involved in the digestion of fats and carbohydrates, not proteins. Therefore, Choices B, C, and D are incorrect in the context of protein digestion in the stomach.