Question

1. choose the best answer.

the bodys preferred nutrient for giving energy is ____.
carbohydrates
water
dri
protein

1. choose the best answer.

water is found in every cell and makes up ____ of total cell mass.
80%
90%
0%
70%

Explanation:

1. Carbohydrates are the body's primary and preferred source of energy as they are easily broken down into glucose, which is used by cells for energy. Water is essential for many bodily functions but does not provide energy. DRI (Dietary Reference Intakes) is a set of reference values for nutrients, not a nutrient itself. Proteins are mainly for growth, repair, and maintenance, and are used for energy only when carbohydrates are scarce.
2. Water is a major component of cells. On average, water makes up about 80% of the total cell mass. 90% is too high for the general cell mass composition. 0% is incorrect as water is present in cells. 70% is lower than the typical average.

Answer:

1. carbohydrates
2. 80%