A nurse is assisting with teaching a class about minerals. Which of the following minerals is needed for the transport of oxygen?
Iron
Magnesium
Potassium
Phosphorus
The Correct Answer is A
A. Iron is a crucial component of hemoglobin in red blood cells, responsible for carrying oxygen throughout the body.
B. Magnesium is involved in various enzymatic reactions, nerve function, and muscle contractions, but it's not directly involved in oxygen transport.
C. Potassium plays a role in maintaining electrolyte balance and cell function, not in oxygen transport.
D. Phosphorus is essential for bone health, energy metabolism, and cell membrane formation but is not directly involved in oxygen transport.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","E"]
Explanation
A. B6 (pyridoxine) is a water-soluble vitamin that plays roles in metabolism, red blood cell production, and the nervous system.
B. Vitamin K is a fat-soluble vitamin responsible for blood clotting and is not water-soluble.
C. Vitamin A is a fat-soluble vitamin important for vision, immune function, and skin health, not water-soluble.
D. Vitamin E is a fat-soluble antioxidant vitamin, not water-soluble.
E. Vitamin C (ascorbic acid) is a water-soluble vitamin crucial for collagen synthesis, antioxidant function, and immune support.
Correct Answer is B
Explanation
A. Lactovegetarians include dairy products in their diet along with plant-based foods.
B. Lactovegetarians follow a vegetarian diet that includes plant-based foods as well as dairy products like milk, cheese, yogurt, etc.
C. This description does not fit the dietary pattern of a lactovegetarian, as it suggests avoiding eggs only.
D. Including poultry along with plant foods doesn't align with the lactovegetarian diet, which excludes meat.
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