Nokea
The ideal time to begin taking folate to prevent neural tube defects is:
- A. Before conception
- B. Once pregnancy begins
- C. At 6 weeks
- D. Upon completion of the first trimester
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
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Plant stanols and sterols help to lower LDL cholesterol and are often added to which food product?
- A. margarine
- B. milk
- C. cereal
- D. yogurt
Correct Answer: A
Rationale: Plant stanols and sterols are commonly added to margarine to help lower LDL cholesterol levels. Margarine acts as a vehicle for these compounds, making it easier for individuals to incorporate them into their daily diet. While milk, cereal, and yogurt are healthy food options, they are not typically enriched with plant stanols and sterols for cholesterol-lowering purposes, making them less likely candidates as the correct answer.
Match amylase with its digestive action:
- A. breaks down carbs
- B. breaks down proteins
- C. breaks down lipids
- D. helps fat digestion
Correct Answer: A
Rationale: The correct answer is A: 'breaks down carbs.' Amylase is an enzyme that specifically targets carbohydrates, breaking them down into simpler sugars like maltose. This process aids in the digestion of carbohydrates in the human body. Choices B, C, and D are incorrect because amylase does not break down proteins, lipids, or directly aid fat digestion. Proteins are broken down by proteases, lipids are broken down by lipases, and fat digestion is primarily assisted by bile salts and lipases in the small intestine.
How many grams of protein per day are recommended for a person weighing 150 lbs?
- A. 120
- B. 85
- C. 187.5
- D. 54
Correct Answer: D
Rationale: The Recommended Dietary Allowance (RDA) for protein is 0.8 grams per kilogram of body weight. To convert pounds to kilograms, divide the weight in pounds by 2.2. Therefore, a 150 lb person weighs approximately 68 kg (150 / 2.2 = 68). Multiplying 68 kg by 0.8 grams gives us 54 grams of protein per day. Choices A, B, and C are incorrect as they do not align with the RDA calculation based on body weight.
Diseases of the heart and blood vessels are collectively referred to as _____.
- A. Coronary artery disease
- B. Cardiovascular disease
- C. Coronary heart disease
- D. Coronary vessel disease
Correct Answer: B
Rationale: The correct term for diseases of the heart and blood vessels is cardiovascular disease. While coronary artery disease (Choice A) specifically involves the narrowing of coronary arteries, it is just one type of cardiovascular disease. Coronary heart disease (Choice C) is also a specific condition related to the heart's blood vessels. Choice D, coronary vessel disease, is not a commonly used term to describe diseases of the heart and blood vessels. Therefore, Choice B, cardiovascular disease, is the most inclusive and appropriate term to refer to these conditions.
How many diet-related major risk factors for coronary heart disease does Mrs. Winslow have?
- A. 1
- B. 4
- C. 2
- D. 3
Correct Answer: B
Rationale: Mrs. Winslow has four major diet-related risk factors for coronary heart disease: high total cholesterol, high LDL cholesterol, high triglycerides, and low HDL cholesterol. Choice A is incorrect because there are more than one risk factor present. Choices C and D are incorrect as they do not account for the total number of diet-related major risk factors identified.