Across
- 2. The cell’s main energy currency.
- 7. acid Building block of fats and oils.
- 9. acid Small unit that builds proteins.
- 11. Simple sugar used as the body’s main fuel.
- 13. Part of hemoglobin; carries oxygen in blood.
- 14. Builds larger molecules from smaller ones.
- 16. Helps fluid balance and nerve signals.
- 17. Mineral for strong bones and teeth.
Down
- 1. Made of amino acids; needed for growth and repair.
- 3. Helps nerve signals and muscle contractions.
- 4. Stored form of glucose in liver and muscles.
- 5. Breaks molecules down to release energy.
- 6. Protein in red blood cells that carries oxygen.
- 8. Nerve cell that sends messages.
- 10. All the chemical reactions that keep you alive.
- 12. The most common type of body fat.
- 15. Molecule that carries genetic instructions.