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PN Nutrition Assessment ATI
1. The body of scientific knowledge related to nutritional requirements for human growth, maintenance, activity, and reproduction is known as:
- A. physiology.
- B. nutrition science.
- C. biochemistry.
- D. dietetics.
Correct answer: B
Rationale: The correct answer is B: nutrition science. Nutrition science specifically focuses on studying the requirements and functions of nutrients in relation to human growth, maintenance, activity, and reproduction. Choice A, physiology, deals more with the functions of living organisms and their parts, not specifically related to nutrients. Choice C, biochemistry, focuses on the chemical processes and substances that occur within living organisms, not specifically centered on nutritional requirements. Choice D, dietetics, involves the application of nutritional knowledge in planning and managing diets for individuals, but it is more focused on the practical aspect rather than the broader scientific study of nutritional requirements.
2. Which lipoprotein carries fat from a meal just consumed to the liver?
- A. Very low-density lipoprotein (VLDL).
- B. Low-density lipoprotein (LDL).
- C. Chylomicrons.
- D. High-density lipoprotein (HDL).
Correct answer: C
Rationale: Chylomicrons are the lipoproteins responsible for transporting dietary fat from the intestines to various tissues, including the liver. VLDL carries lipids synthesized in the liver, LDL transports cholesterol to tissues, and HDL helps transport cholesterol away from tissues to the liver for excretion. Therefore, in the context of carrying fat from a meal just consumed to the liver, chylomicrons are the correct choice.
3. What is the basis of MyPlate food guidance?
- A. Percentage of calories from each macronutrient.
- B. Exchange Lists for Meal Planning.
- C. Appropriate amounts of food from each food group.
- D. Amounts of macronutrients and micronutrients.
Correct answer: C
Rationale: The correct answer is C: 'Appropriate amounts of food from each food group.' MyPlate food guidance focuses on portion sizes from different food groups to promote a balanced diet. Choices A, B, and D are incorrect because MyPlate emphasizes the consumption of a variety of foods from different food groups rather than focusing solely on macronutrient percentages, exchange lists, or specific nutrient amounts.
4. Which of the following are macronutrients?
- A. Minerals.
- B. Proteins.
- C. Vitamins.
- D. Enzymes.
Correct answer: B
Rationale: Proteins are indeed macronutrients, along with carbohydrates and fats. Macronutrients are nutrients that provide energy and are required in large amounts by the body. Minerals and vitamins are considered micronutrients, as they are needed in smaller quantities. Enzymes, on the other hand, are not nutrients but rather biological molecules that act as catalysts in biochemical reactions.
5. Exchange Lists for Meal Planning group foods that are equivalent in their:
- A. weight.
- B. serving size.
- C. micronutrient content.
- D. macronutrient content.
Correct answer: D
Rationale: The Exchange Lists for Meal Planning categorize foods based on their macronutrient content, such as carbohydrate, protein, and fat. These lists help individuals make food choices while ensuring similar amounts of macronutrients are consumed. Therefore, the correct answer is D. Choices A, B, and C are incorrect because Exchange Lists focus on macronutrient content, not weight, serving size, or micronutrient content.
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