Nokea
What is a major constituent of cell membranes?
- A. cholesterol
- B. phospholipid
- C. saturated
- D. triglyceride
Correct Answer: B
Rationale: Phospholipids are a major component of cell membranes, providing structural integrity and facilitating cell signaling. Cholesterol (choice A) is also present in cell membranes but in smaller amounts and plays a different role. Saturated (choice C) and triglyceride (choice D) are not major constituents of cell membranes.
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Which of the following is the least likely reason that osteoporosis is more prevalent in women?
- A. women have smaller bodies
- B. women have lower bone mass
- C. women consume less calcium
- D. bone loss begins later in women
Correct Answer: D
Rationale: The correct answer is D. Contrary to the statement, bone loss begins earlier in women, particularly after menopause, due to the decrease in estrogen levels. This drop in estrogen accelerates bone loss, contributing to the higher prevalence of osteoporosis in women. Choices A, B, and C are more likely reasons for the increased prevalence of osteoporosis in women. Women generally have smaller bodies, lower bone mass compared to men, and may consume less calcium, all of which are significant factors contributing to the higher incidence of osteoporosis in women.
According to the dietary reference intakes, what percentage of your daily calorie intake should ideally come from carbohydrates?
- A. 10-35%
- B. 20-35%
- C. 40-50%
- D. 45-65%
Correct Answer: D
Rationale: Carbohydrates should ideally make up 45-65% of your total daily caloric intake, according to the Dietary Reference Intakes (DRIs). This range provides the necessary energy for bodily functions and activities. Choices A, B, and C are incorrect because they fall outside the recommended range for carbohydrate intake based on the DRIs.
Which dietary recommendation is most appropriate for a patient with gout?
- A. Increase protein intake
- B. Reduce carbohydrate intake
- C. Avoid purine-rich foods
- D. Increase calcium intake
Correct Answer: C
Rationale: The most appropriate dietary recommendation for a patient with gout is to avoid purine-rich foods. Purine-rich foods such as red meat and shellfish can lead to increased uric acid levels in the body, triggering gout flare-ups. Increasing protein intake (Choice A) is not recommended as some high-protein foods are also high in purines. Reducing carbohydrate intake (Choice B) and increasing calcium intake (Choice D) are not directly related to managing gout symptoms.
Without enough calcium, both males and females are at risk of osteoporosis.
- A. TRUE
- B. FALSE
Correct Answer: A
Rationale: The statement is true. Both males and females are at risk of developing osteoporosis if they do not consume enough calcium. Calcium is essential for maintaining strong bones, and inadequate intake can lead to bone density loss and increase the risk of osteoporosis. Therefore, it is crucial for individuals of all genders to ensure they have an adequate calcium intake to support bone health. Choice B is incorrect because osteoporosis is a condition that can affect both males and females.
Which of the following provides greater flexibility, better balance, more endurance, and overall better health and greater longevity for older adults?
- A. Eating balanced meals
- B. Not smoking or drinking alcohol
- C. Daily physical activity
- D. Increased intake of calcium and iron
Correct Answer: C
Rationale: The correct answer is C: Daily physical activity. Daily physical activity contributes to better flexibility, balance, endurance, and overall health, helping older adults maintain independence and reduce the risk of chronic diseases. Choices A, B, and D, although important for overall health, do not specifically address the benefits of greater flexibility, better balance, more endurance, and greater longevity associated with daily physical activity.