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 6th grader response

Answer 1

The diagrams show sugar molecules have only carbon, hydrogen, and oxygen, so they can help make carbohydrates and parts of fats (lipids) but not the parts that need other elements. Because proteins need nitrogen (and sometimes sulfur) and DNA/RNA need nitrogen and phosphorus, sugars alone do not provide all the elements needed to make the four types of macromolecules.