Across
- 4. The basic unit of fuel (sugar) used in cellular respiration,
- 5. The process of water movement through a plant,
- 10. The upper chamber of the heart,
- 11. Air sacs in the lungs where gas exchange occurs,
- 13. Blood vessel that carries blood away from the heart,
- 17. Covers the trachea during swallowing to prevent food from entering the lungs,
- 18. Plant tissue that transports sugar/food
- 20. The watery, liquid part of blood,
- 23. A nutrient broken down into glucose during digestion,
- 24. Plant tissue that transports water and mineral salts,
- 27. Organ where hydrochloric acid and pepsin break down protein,
- 28. Fatty acid and ________ are the end products of fat digestion,
- 29. The process of taking food into the digestive system
- 30. the movement of water molecules through a selectively permeable membrane,
- 31. Tiny finger-like projections in the small intestine that absorb nutrients,
Down
- 1. The gas produced as a waste product in respiration,
- 2. The gas needed for respiration to release energy,
- 3. Organ responsible for producing bile and filtering blood
- 6. The main artery that pumps blood out of the heart
- 7. An organism's ability to maintain steady internal conditions (like temperature)
- 8. Tiny blood vessels where exchange of materials occurs,
- 9. Chemical, green pigment needed for photosynthesis (not directly in this unit, but related to plant transport)
- 12. Tube connecting the mouth to the stomach
- 14. Process of releasing energy from food, usually needing oxygen,
- 15. Muscle contractions that move food down the alimentary canal
- 16. Muscle under the lungs that assists in breathing,
- 19. Type of respiration without oxygen, common in anaerobic conditions
- 21. Movement of substances from high to low concentration,
- 22. Block of protein; small molecules absorbed by villi,
- 25. Specialized proteins that speed up chemical digestion,
- 26. The process of breaking down food into smaller, absorbable molecules,