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ATI Nutrition Proctored Exam 2019 Answers
1. Where is Vitamin B12 found?
- A. Whole grains.
- B. Nuts.
- C. Meats.
- D. Legumes.
Correct answer: C
Rationale: Vitamin B12 is primarily found in animal-derived foods like meats. Choices A, B, and D are incorrect as whole grains, nuts, and legumes do not naturally contain significant amounts of Vitamin B12. Therefore, the correct answer is 'C: Meats.'
2. 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.
3. How many different amino acids make up human proteins?
- A. 9
- B. 13
- C. 15
- D. 20
Correct answer: D
Rationale: The correct answer is D: 20. There are 20 different amino acids that combine to form proteins in the human body. Each amino acid has a unique side chain that determines its properties. Choices A, B, and C are incorrect as they do not represent the total number of different amino acids found in human proteins.
4. Fructose is the sugar found in:
- A. bread.
- B. gelatin desserts.
- C. sugar-coated cereals.
- D. honey and fruit.
Correct answer: D
Rationale: Fructose is a sugar naturally found in honey and fruit. While bread contains carbohydrates, it does not primarily consist of fructose. Gelatin desserts are more likely to contain added sugars like sucrose rather than fructose. Sugar-coated cereals typically contain sucrose or other added sugars, not just fructose. Therefore, the correct answer is honey and fruit as they naturally contain fructose.
5. The sum of all chemical processes inside living cells of the body that sustain life and health is known as:
- A. physiology
- B. digestion
- C. metabolism
- D. nutrition
Correct answer: C
Rationale: Metabolism is the correct answer as it refers to the sum of all chemical processes that occur within living cells to maintain life and health. Physiology (Choice A) is the study of how living organisms function but does not specifically refer to cellular chemical processes. Digestion (Choice B) is the process of breaking down food in the body, not the overall cellular processes. Nutrition (Choice D) is the process of obtaining and consuming food necessary for health and growth, but it does not encompass all cellular processes related to sustaining life and health.
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