Across
- 2. Protein in red blood cells that carries oxygen.
- 5. Organ that produces bile and detoxifies substances.
- 6. Gland that produces digestive enzymes and insulin.
- 9. Process of breaking down food into simpler substances.
- 12. Organism that makes its own food.
- 14. Largest artery in the body.
- 16. Tiny air sacs in the lungs where gas exchange occurs.
- 19. Smallest blood vessel where exchange of substances occurs.
- 20. Organelle known as the powerhouse of the cell.
- 23. Biological catalyst that speeds up chemical reactions in the body.
- 25. Process of removing waste products from the body.
- 26. Tissue responsible for the transport of water and minerals in plants.
- 28. Organism that obtains food from other organisms.
- 30. Digestive juice produced by the liver.
Down
- 1. Wave-like muscle contractions that move food through the digestive tract.
- 3. Finger-like projections in the small intestine that increase surface area for absorption.
- 4. Waste product formed in the liver and excreted by the kidneys.
- 6. Process by which green plants make their own food using sunlight.
- 7. Process of breaking down food to release energy.
- 8. Device used to measure blood pressure
- 10. Green pigment in plants that absorbs light energy for photosynthesis.
- 11. Muscle that helps in breathing.
- 13. Loss of water vapor from the aerial parts of plants.
- 15. Tissue responsible for the transport of food in plants.
- 17. Fluid that circulates in the lymphatic system.
- 18. Tiny openings on the surface of leaves for gas exchange.
- 21. Organelle where photosynthesis occurs.
- 22. Nerve cells that transmit signals in the body.
- 24. Functional unit of the kidney.
- 27. Windpipe that connects the larynx to the bronchi.
- 29. Liquid component of blood.