which of the following is the absorbable unit of a protein

ATI RN

ATI Nutrition Practice A

1. What is the absorbable unit of a protein?

A. Amino acid
B. Pepsin
C. Glucose
D. Sucrose

Correct answer: A

Rationale: Amino acids are the correct answer because they are the building blocks of proteins that the body absorbs after digestion. Pepsin, choice B, is incorrect as it is an enzyme that aids in the digestion of proteins, not the absorbable unit of them. Choices C and D, glucose and sucrose, are wrong because they are types of sugars, not proteins.

2. In the following ingredient list, which is the most abundant by weight? Ingredients: enriched flour, sugars, eggs, soy lecithin, artificial colors, natural flavors, milk.

A. milk
B. eggs
C. sugar
D. enriched flour

Correct answer: D

Rationale: The correct answer is 'enriched flour.' In ingredient lists, items are typically listed by weight in descending order. Therefore, the first ingredient, in this case, 'enriched flour,' is the most abundant by weight. Choice A, 'milk,' is not the most abundant as it appears last in the list. Choice B, 'eggs,' and choice C, 'sugar,' also rank lower in the list compared to 'enriched flour,' making them less abundant by weight.

3. What is one of the best nutritional actions a caregiver can take to help a patient with Alzheimer's disease maintain appropriate body weight?

A. Thicken liquids to prevent choking
B. Supervise food planning and mealtimes
C. Assist the person in completing a grocery checklist
D. Feed the person their meals and snacks

Correct answer: B

Rationale: The correct answer is B, 'Supervise food planning and mealtimes'. This action ensures the patient with Alzheimer's disease maintains an appropriate diet and body weight, thus reducing the risk of malnutrition. While choices A, 'Thicken liquids to prevent choking', C, 'Assist the person in completing a grocery checklist', and D, 'Feed the person their meals and snacks', might be beneficial in certain circumstances, they do not directly contribute to the maintenance of appropriate body weight as effectively as supervising food planning and mealtimes does.

4. Why are blood glucose levels high in type 1 diabetes?

A. The urinary excretion of glucose is impaired
B. The lean body mass is metabolized to produce glucose via gluconeogenesis
C. The absorption of glucose from the gastrointestinal tract is more efficient
D. There is insufficient insulin to facilitate the transport of glucose into the cells

Correct answer: D

Rationale: In type 1 diabetes, the body's immune system destroys the beta cells in the pancreas that produce insulin. This leads to an insufficient amount of insulin, which is required to facilitate the transport of glucose into the cells. Consequently, blood glucose levels remain high. The other options are incorrect. Option A is incorrect because urinary excretion of glucose does not directly contribute to blood glucose levels. Option B is incorrect because, while gluconeogenesis does produce glucose, it is not the cause of high glucose levels in type 1 diabetes. Option C is incorrect because absorption efficiency of glucose from the gastrointestinal tract does not affect the amount of insulin available to transport glucose into cells.

5. Clients may benefit from slightly higher fat intakes than are normally recommended if they have:

A. congestive heart failure
B. cerebrovascular accident
C. peripheral vascular disease
D. chronic obstructive pulmonary disease

Correct answer: D

Rationale: In chronic obstructive pulmonary disease (COPD), higher fat intake can be beneficial because it provides more calories with less respiratory burden compared to carbohydrates. Choices A, B, and C are incorrect because congestive heart failure, cerebrovascular accident, and peripheral vascular disease do not specifically benefit from higher fat intakes as in COPD.