one of the simplest amino acids is
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Nutrition For PN Nursing ATI

1. Which of the following is one of the simplest amino acids?

Correct answer: D

Rationale: The correct answer is Glycine. Glycine is indeed one of the simplest amino acids as it consists of just a hydrogen atom as its side chain. Arginine, Valine, and Lysine are all more complex amino acids compared to Glycine, making them incorrect choices for this question.

2. Foodborne illness may be caused by contamination of food with:

Correct answer: C

Rationale: The correct answer is C: microorganisms. Microorganisms, such as bacteria and viruses, are common causes of foodborne illnesses. These pathogens can contaminate food during various stages of production, processing, or preparation. Choice A, pesticides, are chemicals used to control pests and are not a common cause of foodborne illnesses. Genetically modified ingredients, choice B, refer to foods derived from genetically modified organisms (GMOs) and are not inherently linked to foodborne illnesses. Food additives, choice D, are substances added to food to preserve flavor or enhance taste and are not typically the primary cause of foodborne illnesses.

3. A major focus of the 2010 Dietary Guidelines is:

Correct answer: B

Rationale: The correct answer is B: the unhealthy American public. The 2010 Dietary Guidelines primarily aimed to address the unhealthy eating habits prevalent in the American population. Choice A is incorrect as the focus was not solely on generally healthy segments of the population. Choice C is incorrect as the guidelines were not specifically tailored only for vulnerable population segments. Choice D is incorrect as the guidelines were more concerned with promoting healthy eating habits rather than ethnically diverse eating styles.

4. How can cholesterol absorption be decreased?

Correct answer: B

Rationale: The correct answer is B: Plant sterols. Plant sterols can reduce cholesterol absorption by competing with cholesterol for absorption sites. Vitamin K, choice A, does not have a significant impact on cholesterol absorption. Trans fats, choice C, are known to increase cholesterol levels rather than decrease absorption. Phospholipids, choice D, play a role in cell structure and are not directly involved in reducing cholesterol absorption.

5. Which lipoprotein carries fat from a meal just consumed to the liver?

Correct answer: C

Rationale: Chylomicrons are the lipoproteins responsible for transporting dietary fat from the intestines to various tissues, including the liver. VLDL carries lipids synthesized in the liver, LDL transports cholesterol to tissues, and HDL helps transport cholesterol away from tissues to the liver for excretion. Therefore, in the context of carrying fat from a meal just consumed to the liver, chylomicrons are the correct choice.

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