Across
- 2. Common Acid found in lemon
- 5. speeds up reaction
- 7. Protein-digesting enzyme in stomach
- 8. Disease caused by lack of insulin
- 9. Liquid Part of blood
Down
- 1. part of atom having positive charge
- 3. Basic unit of life
- 4. Smallest unit of an element
- 6. gas used in balloons