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ATI Nutrition Proctored Exam 2019 Answers
1. Which of the following enzymes is found in pancreatic secretions?
- A. Rennin
- B. Pepsin
- C. Chymotrypsin
- D. Casein
Correct answer: C
Rationale: Chymotrypsin is an enzyme found in pancreatic secretions that plays a role in protein digestion. Rennin is primarily found in the stomach and is involved in milk digestion. Pepsin is also a stomach enzyme that aids in protein breakdown. Casein is a protein found in milk, not an enzyme involved in pancreatic secretions. Therefore, the correct answer is Chymotrypsin.
2. The professional primarily responsible for the application of nutrition science in clinical practice settings is the:
- A. nurse.
- B. physician.
- C. public health nutritionist.
- D. registered dietitian.
Correct answer: D
Rationale: The correct answer is D: registered dietitian. A registered dietitian is a healthcare professional with specialized training in nutrition and dietetics, making them primarily responsible for applying nutrition science in clinical practice settings. Nurses (choice A) and physicians (choice B) may have some knowledge of nutrition, but a registered dietitian has specific expertise in this area. Public health nutritionists (choice C) typically focus on community nutrition and public health programs, rather than clinical practice settings.
3. A protein that contains all the essential amino acids in the proper proportions is called:
- A. simple
- B. indispensable
- C. complete
- D. complementary
Correct answer: C
Rationale: A complete protein is the term used to describe a protein that contains all the essential amino acids required by the body in the right proportions. This makes choice C the correct answer. Choice A, 'simple,' is incorrect as it does not reflect the concept of essential amino acids. Choice B, 'indispensable,' while related to importance, does not specifically address the presence of all essential amino acids. Choice D, 'complementary,' is also incorrect as it refers to combining proteins to achieve a complete amino acid profile, rather than describing a protein that already contains all essential amino acids.
4. Major nutrients supplied by foods in the Vegetables group of MyPlate include:
- A. potassium and vitamin A.
- B. iron and vitamin C.
- C. calcium and vitamin B12.
- D. sodium and vitamin E.
Correct answer: A
Rationale: The correct answer is A: potassium and vitamin A. Vegetables are an excellent source of potassium and vitamin A, both essential for maintaining overall health. Iron and vitamin C (choice B) are commonly found in foods from the Protein and Fruits groups, respectively. Calcium and vitamin B12 (choice C) are more abundant in dairy products and animal-based foods. Sodium and vitamin E (choice D) are not the major nutrients typically supplied by vegetables.
5. 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.
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