ATI LPN
Nutrition ATI Proctored Exam Questions
Question 1 of 5
A person with lactose intolerance should be most careful to limit their intake of:
Correct Answer: A
Rationale: Individuals with lactose intolerance lack the enzyme lactase needed to break down lactose, the sugar in dairy products. Milk contains a high amount of lactose, making it crucial for those with lactose intolerance to limit their intake. Yogurt and cheese, on the other hand, have lower lactose content due to the fermentation process which reduces lactose levels, making them better tolerated by many with lactose intolerance. Corn syrup, although high in sugar, does not contain lactose and is unrelated to lactose intolerance.
Therefore, the correct answer is 'milk' as it is a significant source of lactose, which can trigger symptoms in individuals with lactose intolerance.
Question 2 of 5
What is the mechanism that is essential for the absorption of monosaccharides?
Correct Answer: B
Rationale: Active transport is the mechanism essential for the absorption of monosaccharides in the intestine. This process requires energy to move molecules against their concentration gradient, allowing for the absorption of monosaccharides efficiently. Phosphorylation, the process of adding a phosphate group to a molecule, is not directly involved in the absorption of monosaccharides. Passive diffusion, a process that does not require energy, is not the primary mechanism for absorbing monosaccharides due to their large size. Facilitated diffusion, a type of passive transport that involves carrier proteins, is not the primary mechanism for monosaccharide absorption, as monosaccharides require active transport for efficient absorption.
Question 3 of 5
Carbohydrates are composed of a combination of carbon, hydrogen, and which other element?
Correct Answer: A
Rationale: Carbohydrates are composed of carbon, hydrogen, and oxygen. These three elements combine to form the basic structure of carbohydrates. Oxygen is an essential element in carbohydrates, contributing to their chemical composition.
Choice B (nitrogen) is incorrect as nitrogen is not a typical component of carbohydrates.
Choice C (water) is incorrect as water is not an element but a compound composed of hydrogen and oxygen.
Choice D (glucose) is incorrect as glucose is a specific type of sugar, not an element found in the composition of carbohydrates.
Question 4 of 5
Which of the following is a characteristic of essential fatty acids?
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.
Question 5 of 5
In which health problem is protein catabolism increased?
Correct Answer: A
Rationale: Protein catabolism increases in conditions like severe burns because the body breaks down muscle protein to provide energy for healing. Severe obesity does not necessarily increase protein catabolism; instead, it is more related to excessive fat accumulation. Hypothyroidism may lead to a decrease in metabolic rate but does not directly increase protein catabolism. Food allergies trigger an immune response to specific foods but do not directly impact protein catabolism.