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ATI Nutrition Proctored Exam 2019 Answers
1. A vegetarian diet that includes dairy foods and eggs is known as:
- A. lactovegetarian.
- B. vegan.
- C. semi-vegetarian.
- D. ovolactovegetarian.
Correct answer: D
Rationale: The correct term for a vegetarian diet that includes both dairy foods and eggs is 'ovolactovegetarian.' This term specifically indicates the inclusion of eggs ('ovo') and dairy ('lacto') in the diet. Choice A, 'lactovegetarian,' is incorrect because it only includes dairy products without eggs. Choice B, 'vegan,' is incorrect as it excludes all animal products, including dairy and eggs. Choice C, 'semi-vegetarian,' is incorrect as it is a term used for individuals who occasionally eat meat, poultry, or fish but primarily follow a plant-based diet.
2. Which nutrient has a protein-sparing effect?
- A. Glycerol
- B. Carbohydrate
- C. Nitrogen
- D. Fatty acids
Correct answer: B
Rationale: Carbohydrates have a protein-sparing effect, meaning that adequate carbohydrate intake can prevent the use of protein for energy. Glycerol, nitrogen, and fatty acids do not have a protein-sparing effect. Glycerol is a component of fats and oils, nitrogen is a component of proteins, and fatty acids are used primarily as an energy source.
3. Individuals with optimal nutritional status differ from those with marginal nutritional status in their:
- A. nutrient reserves.
- B. clinical signs.
- C. body weight.
- D. risk of mental illness.
Correct answer: A
Rationale: Individuals with optimal nutritional status differ from those with marginal nutritional status in their nutrient reserves. Optimal nutritional status implies having adequate nutrient reserves, which is lacking in marginal status. Clinical signs (choice B) may or may not be present in both groups and are not the differentiating factor between optimal and marginal statuses. Body weight (choice C) can vary for reasons other than nutritional status. The risk of mental illness (choice D) is not directly related to the comparison between optimal and marginal nutritional status.
4. In which health problem is protein catabolism increased?
- A. severe burns
- B. severe obesity
- C. hypothyroidism
- D. food allergies
Correct answer: A
Rationale: Protein catabolism increases in conditions like severe burns because the body breaks down muscle protein to provide energy for healing. Severe obesity does not necessarily increase protein catabolism; instead, it is more related to excessive fat accumulation. Hypothyroidism may lead to a decrease in metabolic rate but does not directly increase protein catabolism. Food allergies trigger an immune response to specific foods but do not directly impact protein catabolism.
5. The sugar to which all other sugars are converted during human metabolism is:
- A. sucrose
- B. fructose
- C. glucose
- D. maltose
Correct answer: C
Rationale: Glucose is the primary sugar used by the body for energy and is converted from other sugars during metabolism. Sucrose is a disaccharide composed of glucose and fructose, not the end product of sugar metabolism. Fructose is a simple sugar found in fruits but needs to be converted to glucose for cellular energy. Maltose is a disaccharide composed of two glucose units and is not the final product of sugar metabolism in humans.
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