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PN Nutrition Assessment ATI
1. The major focus of nutritional recommendations in this century has shifted to:
- A. prevention and control of chronic diseases.
- B. improved sanitation and public health.
- C. prevention and control of infectious diseases.
- D. development of healthful foods using food technology.
Correct answer: A
Rationale: The correct answer is A: prevention and control of chronic diseases. In this century, nutritional recommendations have increasingly emphasized the importance of preventing and managing chronic diseases like obesity, diabetes, cardiovascular diseases, and cancer. Lifestyle factors such as diet play a significant role in the development of these conditions. Option B, improved sanitation and public health, although important for overall health, is not the primary focus of nutritional recommendations. Option C, prevention and control of infectious diseases, is also crucial but does not reflect the current major focus of nutritional recommendations. Option D, development of healthful foods using food technology, is a valid area of interest but is not the primary shift in focus observed in nutritional recommendations.
2. Which of the following provides the best source of nutrients?
- A. specific food combinations.
- B. a variety of foods.
- C. individual foods.
- D. a variety of food supplements.
Correct answer: B
Rationale: A variety of foods is the best source of nutrients because it ensures a balanced intake of all essential nutrients required by the body. Option A, specific food combinations, may not provide all necessary nutrients as relying on only a few types of food may lead to deficiencies. Option C, individual foods, also may not provide a complete range of nutrients necessary for overall health. Option D, a variety of food supplements, is not the best source of nutrients as whole foods are generally more beneficial due to their natural nutrient composition and bioavailability.
3. The mineral that helps control enzyme actions in cell mitochondria that produce and store high-energy compounds is:
- A. iron.
- B. cobalt.
- C. hemoglobin.
- D. vitamin B12.
Correct answer: A
Rationale: The correct answer is iron. Iron is essential for enzyme function and energy production within the mitochondria. While cobalt is important for certain enzymes, it is not the primary mineral involved in this specific function. Hemoglobin is a protein in red blood cells that carries oxygen, not a mineral involved in enzyme actions. Vitamin B12 is crucial for nerve function and DNA synthesis but is not directly related to controlling enzyme actions in mitochondria.
4. The nutrients involved in metabolic regulation and control include minerals, vitamins, and:
- A. amino acids.
- B. carbohydrates.
- C. fats.
- D. water.
Correct answer: D
Rationale: The correct answer is D, water. Water plays a crucial role in metabolic regulation along with vitamins and minerals. While amino acids, carbohydrates, and fats are essential nutrients for various bodily functions, they are not primarily involved in metabolic regulation and control.
5. In addition to protein, which nutrients contribute to the building and repair of tissue?
- A. Vitamins
- B. Carbohydrates
- C. Fats
- D. Enzymes
Correct answer: A
Rationale: The correct answer is A: Vitamins. Vitamins play a crucial role in tissue building and repair along with protein. Carbohydrates (choice B) are primarily a source of energy and not directly involved in tissue building. Fats (choice C) are important for energy storage and insulation but are not the main contributors to tissue building. Enzymes (choice D) are biological catalysts and do not directly contribute to tissue building and repair.
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