Atoms of carbon, oxygen, and hydrogen are found in all biological macromolecules. Which macromolecules are made ONLY of these three elements?
A carbohydrates only
B. carbohydrates and lipids
C. carbohydrates, lipids, and nucleic acids
D. lipids, proteins, and nucleic acids
O
E. carbohydrates, proteins, and nucleic acids

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.