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PLEASE HELP ME IM TIMED!

PLEASE HELP ME IM TIMED!-example-1
User DerekC
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2 Answers

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19 votes
The correct answer is carbohydrates
User Harnish
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9 votes

Answer:

#3 Proteins

Step-by-step explanation:

"There are four classes of macromolecules (polysaccharides or carbohydrates, triglycerides or lipids, polypeptides or proteins, and nucleic acids such as DNA & RNA). Carbohydrates and lipids are made of only carbon, hydrogen, and oxygen (CHO). Proteins are made of carbon, hydrogen, oxygen, and nitrogen (CHON)."

User Vitor Venturin
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