sucrose is a

ATI RN

ATI RN Nutrition Online Practice 2019

1. Sucrose is a:

A. monosaccharide
B. disaccharide
C. polysaccharide
D. starch

Correct answer: B

Rationale: Sucrose is a disaccharide composed of one glucose and one fructose molecule.

2. Folate is crucial for DNA synthesis and cell division, making it particularly important during periods of rapid growth, such as pregnancy.

A. TRUE
B. FALSE
C.
D.

Correct answer: A

Rationale: The correct answer is A. Folate plays a crucial role in DNA synthesis and cell division, which are essential processes for cell multiplication. This makes folate particularly important during periods of rapid growth, such as pregnancy. Therefore, the statement is true. Choice B is incorrect because it fails to acknowledge the significance of folate in cell multiplication and rapid growth, especially during pregnancy.

3. A nurse is providing dietary teaching for a client who has just learned that she has type 2 diabetes mellitus. The nurse should explain that which of the following sweeteners will add calories to the client's carbohydrate count?

A. Sorbitol
B. Sucralose
C. Aspartame
D. Acesulfame potassium

Correct answer: A

Rationale: Sorbitol is a sweetener that will add calories to the client's carbohydrate count. It is a sugar alcohol that provides about 2.6 calories per gram. Sucralose, aspartame, and acesulfame potassium are all non-nutritive sweeteners that do not contribute significant calories to the diet. Sucralose is about 600 times sweeter than sucrose but does not add calories. Aspartame is a low-calorie sweetener that is approximately 200 times sweeter than sucrose, and acesulfame potassium is a calorie-free sweetener.

4. Water loss can occur from each, except one. Which is the exception?

A. Respiratory inflammation
B. Strenuous exercise
C. Diarrhea
D. Perspiration

Correct answer: D

Rationale: The correct answer is D, Perspiration. Water loss can occur through respiration inflammation, strenuous exercise, and diarrhea. Perspiration, also known as sweating, is a mechanism by which the body regulates temperature and eliminates some waste products, but it is not a cause of water loss. The body loses water through sweating, but this loss is mainly for cooling purposes, and it is not a primary mechanism for water loss like respiration, exercise, or diarrhea.

5. A nurse is instructing a group of clients about nutrition and eating foods high in iron. The nurse should include that which of the following aids in the absorption of iron?

A. Fiber
B. Vitamin A
C. Vitamin C
D. Oxalates

Correct answer: C

Rationale: Vitamin C aids in the absorption of iron by enhancing the body's ability to absorb non-heme iron, which is found in plant-based foods. This vitamin helps convert iron into a form that is more easily absorbed in the intestines. Choices A, B, and D are incorrect because fiber, Vitamin A, and oxalates can actually inhibit the absorption of iron. Fiber can bind to iron and reduce its absorption, Vitamin A does not directly enhance iron absorption, and oxalates found in some foods like spinach and rhubarb can also hinder iron absorption.