Question 16 The group of organic macromolecules that have roles including enzymes, and structural components in cells and always contain nitrogen are a lipids Ob proteins Oc carbohydrates d nucleic acids

Answer 1

The correct answer is b) proteins. Proteins are organic macromolecules that serve various roles in biological systems, including functioning as enzymes and providing structural components in cells. They are characterized by the presence of nitrogen in their amino acid building blocks.