Across
- 2. Substances in food that provide energy and materials for growth and repair.
- 3. Organ where most chemical digestion and nutrient absorption occur.
- 4. The process where cells use oxygen and nutrients to release energy.
- 7. Material taken in by organisms to provide energy and nutrients.
- 8. Tiny finger-like structures in the small intestine that absorb nutrients into the blood.
- 10. Breaking food into smaller molecules using enzymes and acids.
- 11. A chemical that speeds up digestion by breaking down food molecules.
- 12. The body system that transports blood, nutrients, and gases.
- 13. Cell parts that use nutrients and oxygen to release energy.
- 14. The process of breaking down food into smaller, usable parts.
Down
- 1. The system that takes in oxygen and removes carbon dioxide.
- 3. Fluid in the mouth that helps moisten food and begin digestion.
- 5. Physical breakdown of food through chewing and mixing.
- 6. The group of organs that breaks down food so the body can absorb nutrients.
- 9. Organ that absorbs water and forms solid waste.