Question

Which of the following statements best describes the structure and function of a carbohydrate?

Carbohydrates are large molecules made up of monosaccharides and are used by organisms for energy storage.

Carbohydrates are made up of starchy monomers and are used for structure, protection, and reproduction.

Carbohydrates are long, winding molecules made up of amino acids and are important in the synthesis of fats and hormones.

Carbohydrates are made up of sucrose molecules that are important for transportation and protein synthesis.

Answer 1

is it hard

Answer 2

You should use process of elimination.

Proteins are made out of amino acids, not carbohydrates. Some - but not all - carbohydrates are made from sucrose molecules - and the question asks about *all carbohydrates*. And the term 'starchy monomer' is biologically vague - starch is a kind of carbohydrate made up of many individual sugar molecules, so it is not a monomer...