Proteins are made up of substances called

(1 point)
Responses

amino acids.
amino acids.
sugars.
sugars.
carbohydrates.
carbohydrates.
starches.

amino acids.

Proteins are made up of substances called amino acids.

To answer this question, we need to identify the substances that make up proteins. The options provided are amino acids, sugars, carbohydrates, and starches. From these options, we can see that amino acids are listed twice, while sugars, carbohydrates, and starches are each listed once.

Proteins are indeed comprised of amino acids. Therefore, the correct answer is amino acids.