A student has isolated a large compound (macromolecule) from cells. Chemical analysis of the compound shows that it is made up of the following elements: carbon, hydrogen, oxygen, nitrogen, and sulfur. To which group of macromolecules does this compound most likely belong?

A) carbohydrate
B) protein
C) nucleic acid
D) lipid
E) aqueous

To which group of macromolecules does this compound most likely belong? B) Protein

Explanation:

If the chemichal analysis of the compound showed carbon, hydrogen, oxygen, nitrogen and phosphorus, we would we talking about nucleic acid. Lipids would not be a possibility because they are made of hydrocarbons. When it comes to carbohydrates, they are made of carbon, hydrogen and oxygen. Protein is the right answer because they are made of carbon, hydrogen, oxygen, nitrogen, and sulfur.

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copper and glass have high electrical conductivity