Runners often eat a big meal of pasta before a big race. Which molecules in the pasta increase the runner's energy?

A. proteins and salts

B. salts and carbohydrates

C. lipids and proteins

D. lipids and carbohydrates

Should be D. Lipids and carbohydrates

The answer is D. Lipids and carbohydrates.

Explanation:

The lipids found in the pasta are a group of biological molecules, rich in energy due to the number of carbon-hydrogen bonds. Lipids are usually a source of energy reserve in the body.

Carbohydrates are one of the main types of nutrients. They are the most important source of energy for the body since their main function in living beings is to provide immediate and structural energy.