Question

question 17
which one of the following is not a macronutrient?
vitamin a
protein
carbohydrate
fat
question 18
which of the following transports essential nutrients to all body parts, transports waste products for disposal, and aids with body temperature maintenance?
iron
fiber
fat
water

Explanation:

For Question 17: Macronutrients are nutrients required in large amounts, including protein, carbohydrates, and fat. Vitamins are micronutrients, needed in small quantities.
For Question 18: Water acts as a transport medium for nutrients and waste, and helps regulate body temperature through processes like sweating. Iron, fiber, and fat do not perform all these functions.

Answer:

Question 17: A. Vitamin A
Question 18: D. Water