mucus is produced by the salivary glands and the

ATI LPN

Nutrition For PN Nursing ATI

1. 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.

2. In the most recent edition of Choose Your Foods: Exchange List for Diabetes, the three groups into which foods are arranged are:

A. fruits and vegetables, breads, and meats.
B. fats, starches and sugars, and meat and milk.
C. fruits and vegetables, meat and milk, and starches.
D. carbohydrates, meat and meat substitutes, and fats.

Correct answer: D

Rationale: The correct answer is D: carbohydrates, meat and meat substitutes, and fats. The most recent edition of Choose Your Foods: Exchange List for Diabetes categorizes foods into these three groups for easier meal planning. Choice A is incorrect because it does not include carbohydrates and groups bread with fruits and vegetables. Choice B is incorrect because it separates carbohydrates into starches and sugars, which are usually counted together in diabetes meal planning. Choice C is incorrect as it does not specifically categorize foods into carbohydrates, meat, and fats as per the latest edition.

3. One characteristic of an essential fatty acid is that it:

A. comes from a plant source.
B. comes from an animal source.
C. is not manufactured by the body.
D. is manufactured by the body.

Correct answer: C

Rationale: The correct answer is C because essential fatty acids are not manufactured by the body and must be obtained through the diet. Choice A is incorrect because essential fatty acids can come from plant sources as well. Choice B is incorrect as essential fatty acids are primarily derived from plant sources. Choice D is incorrect because essential fatty acids cannot be produced by the body. Therefore, the only accurate statement is that essential fatty acids are not manufactured by the body.

4. How is resistant starch digested in the colon?

A. bacterial fermentation.
B. pancreatic amylase.
C. hydrochloric acid.
D. villi and microvilli.

Correct answer: A

Rationale: In the colon, resistant starch is digested by bacterial fermentation. The correct answer is A. During this process, short-chain fatty acids are produced. Pancreatic amylase, as mentioned in choice B, is responsible for breaking down starch in the small intestine, not in the colon. Choice C, hydrochloric acid, functions in the stomach to aid in the digestion of proteins, not starch. Villi and microvilli, as stated in choice D, are structures in the small intestine that absorb nutrients; they do not participate in the digestion of resistant starch in the colon.

5. Which of the following is a characteristic of essential fatty acids?

A. They can come from both animal and plant sources.
B. They are not manufactured by the body.
C. They are not manufactured by the body.
D. They are manufactured by the body.

Correct answer: B

Rationale: The correct answer is B: Essential fatty acids are not manufactured by the body. These fatty acids must be obtained through the diet because the body cannot synthesize them. Choice A is incorrect because essential fatty acids can come from both animal and plant sources, not just from an animal source. Choice C is the correct characteristic of essential fatty acids. Choice D is incorrect because essential fatty acids are not produced by the body.