Plants such as the Venus flytrap and the sundew attract and consume insects. These plants are able to produce substances which break down the insect into compounds that are usable by the plant. One element obtained from these compounds is nitrogen.

These plants obtain much of their nitrogen from amino acids found in the insects. Which of these chemical compounds are the source of the amino acids?
	A	lipids

	B	proteins

	C	nucleic acids

	D	carbohydrates