Question

Diagram has
Carbon
• Hydrogen
• Oxygen


Use evidence from the
diagrams of macromolecules and information provided earlier to revise your explanation about whether sugar molecules provide all the elements needed to make the four types of macromolecules. Write in two sentences in a 4th grader response

Answer 1

Sugar molecules have carbon, hydrogen, and oxygen, so they can be used to make carbohydrates and many fats. But proteins need nitrogen (and DNA/RNA also needs phosphorus), so sugar alone does not have all the elements to make every kind of macromolecule.