Question

1. choose the best answer. this nutrient makes the lipid layer in cell membranes, protects organs from injury, and insulates the body from the cold. carbohydrate protein water fat

Explanation:

Fats are a major component of the lipid - layer in cell membranes. They also act as a cushion to protect organs from injury and provide insulation to keep the body warm. Carbohydrates are mainly energy - sources, proteins have various functions like building tissues but not the main functions described here, and water is crucial for many bodily processes but not for these specific functions related to lipid - layer and insulation.

Answer:

D. fat