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ATI Nutrition Proctored Exam 2019 Answers
1. Which of the following is an example of a disaccharide?
- A. Glucose.
- B. Fructose.
- C. Galactose.
- D. Maltose.
Correct answer: D
Rationale: The correct answer is D, Maltose. A disaccharide is formed when two monosaccharides are joined together. Glucose, fructose, and galactose are all monosaccharides, not disaccharides. Therefore, they are not examples of disaccharides.
2. Which body organ is responsible for the metabolic processing of glucose?
- A. Large intestine.
- B. Gallbladder.
- C. Pancreas.
- D. Liver.
Correct answer: D
Rationale: The correct answer is the liver. The liver plays a central role in glucose homeostasis by metabolically processing glucose. The large intestine is primarily involved in absorbing water and electrolytes, not glucose. The gallbladder stores bile produced by the liver but is not directly involved in glucose metabolism. Although the pancreas produces insulin, a hormone that regulates blood sugar levels, the liver is mainly responsible for the metabolic processing of glucose.
3. 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.
4. How many kilocalories are provided by 15 grams of protein?
- A. 15
- B. 45
- C. 60
- D. 135
Correct answer: C
Rationale: Protein provides 4 kcal per gram. Therefore, 15 grams of protein will provide 15 grams x 4 kcal/gram = 60 kcal. Choices A, B, and D are incorrect because they do not consider the caloric value of protein correctly.
5. 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.
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