Nokea
Which mineral helps strengthen tooth enamel and prevent dental caries?
- A. Calcium
- B. Phosphorus
- C. Fluoride
- D. Zinc
Correct Answer: C
Rationale: The correct answer is C, Fluoride. Fluoride is a mineral known for its ability to strengthen tooth enamel and prevent dental caries. While calcium (Choice A) is essential for strong bones and teeth, it is not specifically known for preventing dental caries. Phosphorus (Choice B) is crucial for bone health but is not directly associated with preventing dental caries. Zinc (Choice D) is not typically recognized for strengthening tooth enamel or preventing dental caries.
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During lactation, where is lactose synthesized in the body?
- A. Liver
- B. Breast
- C. Kidney
- D. Pancreas
Correct Answer: B
Rationale: The correct answer is B: Breast. Lactose is synthesized in the breast during lactation to produce breastmilk. The liver is responsible for various metabolic functions but does not synthesize lactose. The kidney's primary role is in filtering blood and regulating electrolytes, not lactose synthesis. The pancreas is involved in producing digestive enzymes and insulin, not lactose synthesis.
Exchange Lists for Meal Planning was devised by the American Dietetic Association in collaboration with which organization?
- A. the American Cancer Society
- B. the American Diabetes Association
- C. the American Heart Association
- D. the Culinary Institute of America
Correct Answer: B
Rationale: The correct answer is B: the American Diabetes Association. The American Dietetic Association collaborated with the American Diabetes Association to devise the Exchange Lists for Meal Planning. This collaboration aimed to assist individuals, especially those with diabetes, in planning balanced meals. Choices A, C, and D are incorrect as they were not involved in the development of the Exchange Lists.
People with phenylketonuria should avoid foods made with which nonnutritive sweetener?
- A. acesulfame-K
- B. aspartame
- C. saccharin
- D. sucralose
Correct Answer: B
Rationale: People with phenylketonuria should avoid aspartame because it contains phenylalanine, which they cannot metabolize. Acesulfame-K, saccharin, and sucralose do not contain phenylalanine and are safe for individuals with phenylketonuria. Therefore, the correct answer is B. Acesulfame-K, saccharin, and sucralose are incorrect choices because they do not pose a risk for individuals with phenylketonuria due to the absence of phenylalanine in their composition.
Which chain length of fatty acids is most water-soluble and easily absorbed into the bloodstream?
- A. Very long.
- B. Long.
- C. Medium.
- D. Short.
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
What is one function of essential fatty acids?
- A. improve skin integrity.
- B. control lipid digestion.
- C. reduce blood clotting time.
- D. form chylomicrons.
Correct Answer: A
Rationale: Essential fatty acids play a crucial role in improving skin integrity by supporting the structure and function of cell membranes. This helps in maintaining healthy skin and promoting overall well-being. The other choices are incorrect because essential fatty acids do not directly control lipid digestion, reduce blood clotting time, or form chylomicrons.