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ATI Nutrition Proctored Exam 2019 Answers
1. What are oligosaccharides composed of?
- A. 3 to 10 monosaccharide units.
- B. large portions of partially digested starch.
- C. nonnutritive sweeteners.
- D. used for weight management.
Correct answer: A
Rationale: Oligosaccharides are carbohydrates composed of 3 to 10 monosaccharide units, making choice A the correct answer. Choice B is incorrect as oligosaccharides do not contain partially digested starch. Choice C is incorrect as nonnutritive sweeteners are a different category of compounds. Choice D is incorrect as oligosaccharides are not primarily used for weight management.
2. 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.
3. Infections are common in people who have inadequate protein intake because of an insufficient quantity of:
- A. insulin.
- B. lipoprotein.
- C. antibodies.
- D. albumin.
Correct answer: C
Rationale: Inadequate protein intake can lead to a decrease in antibody production, making individuals more susceptible to infections. Insulin (Choice A) is a hormone involved in regulating blood sugar levels, not related to protein intake. Lipoprotein (Choice B) is a type of lipid-protein complex involved in lipid transport, not directly related to antibody production. Albumin (Choice D) is a protein that helps maintain oncotic pressure and carries various substances in the blood, but it is not primarily responsible for fighting infections like antibodies.
4. The function of Dietary Reference Intakes (DRIs) is to designate nutrient recommendations for:
- A. different ethnic groups.
- B. all individuals.
- C. most people.
- D. most healthy people.
Correct answer: D
Rationale: The correct answer is D. Dietary Reference Intakes (DRIs) are established to provide nutrient recommendations for most healthy people. They are not specific to different ethnic groups (choice A), all individuals (choice B), or most people (choice C). DRIs aim to prevent nutrient deficiencies and chronic diseases in healthy individuals by setting intake levels for various nutrients.
5. The process of breaking down body protein into amino acids for energy is known as:
- A. Deamination.
- B. Transamination.
- C. Transcription.
- D. Catabolism.
Correct answer: D
Rationale: The correct answer is D: Catabolism. Catabolism involves the breakdown of body proteins into amino acids to be used as energy when there is an inadequate dietary intake. Choices A and B, deamination and transamination, involve the removal and transfer of amino groups, respectively, but not the breakdown of body proteins. Choice C, transcription, is a process in genetics where DNA is used to create mRNA, not related to breaking down body proteins.
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