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ATI Nutrition Proctored Exam 2019 Answers
1. Which phase of metabolism makes growth and repair possible?
- A. digestion
- B. catabolism
- C. anabolism
- D. ketosis
Correct answer: C
Rationale: Anabolism is the phase of metabolism responsible for building up and repairing tissues in the body. It involves processes that require energy to synthesize complex molecules from simpler ones. Digestion (choice A) is the process of breaking down food into simpler substances for absorption. Catabolism (choice B) involves the breakdown of complex molecules into simpler ones with the release of energy. Ketosis (choice D) is a metabolic state where the body uses fat as the primary source of energy, which is not directly related to growth and repair.
2. What is the process by which proteins are synthesized from the available amino acids?
- A. Gluconeogenesis.
- B. Deamination.
- C. Protein synthesis.
- D. Transamination.
Correct answer: C
Rationale: The correct answer is C: Protein synthesis. This process involves the formation of proteins from amino acids to support various body functions. Gluconeogenesis (choice A) is the synthesis of glucose from non-carbohydrate sources, not protein synthesis. Deamination (choice B) is the removal of an amino group from an amino acid, not the synthesis of proteins. Transamination (choice D) is the transfer of an amino group from one molecule to another, not the direct synthesis of proteins.
3. Which observation provides evidence that a person has good nutritional status?
- A. Small muscle mass.
- B. Normal weight-to-height ratio.
- C. Smooth tongue.
- D. Fragile skin.
Correct answer: B
Rationale: A normal weight-to-height ratio is a reliable indicator of good nutritional status as it suggests that the person is well-nourished and not underweight or overweight. Small muscle mass (choice A) can indicate malnutrition, a smooth tongue (choice C) can be a sign of vitamin deficiencies, and fragile skin (choice D) can be a sign of poor nutrition or other health issues, but they are not as direct indicators of good nutritional status as a normal weight-to-height ratio.
4. Which of the following is a source of complete protein?
- A. Cereal grains.
- B. Beans.
- C. Nuts.
- D. Eggs.
Correct answer: D
Rationale: Eggs are considered a source of complete protein because they contain all the essential amino acids required by the body. The other options, cereal grains, beans, and nuts, do not provide all the essential amino acids in the necessary proportions to be classified as complete proteins.
5. Mucus is produced by the salivary glands and the:
- A. intestinal glands.
- B. esophageal glands.
- C. pineal gland.
- D. islets of Langerhans.
Correct answer: A
Rationale: Mucus is produced by the salivary glands to moisten food and aid in swallowing. Additionally, the intestinal glands secrete mucus to protect the lining of the intestines. The other choices, esophageal glands, pineal gland, and islets of Langerhans, are not involved in the production of mucus in the digestive system.
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