Match the compound with the correct element contained within it.
Iron
1. Chlorophyll
Carbon, hydrogen,
nitrogen, oxygen,
phosphorus, and calcium.
2. Hemoglobin
3. 300 enzymes
Cobalt
4. 30 enzymes
Zinc
5. Vitamin B12
Magnesium
6. Organic compounds such as
carbohydrates, lipids, proteins, and
nucleic acids.
Copper