Across
- 3. Substances that are made by living things are said to be _____.
- 5. Substances such as carbon dioxide, water and minerals are referred to as ____ substances.
- 8. The rate of photosynthesis increases with increasing light _____.
- 10. Tubes that carry away sucrose and other substances that the leaf has made
- 11. Waxy substance that covers the surface of leaves
- 12. Plant leaves have an upper and lower _______.
- 13. The process by which glucose and oxygen are generated in plants
- 14. Another name for a leaf stalk
Down
- 1. A ____ factor is something present in the environment in such short supply that it restricts life processes.
- 2. The rate of photosynthesis increases with increasing concentration of ____ (provide the formula).
- 4. A type of cell that regulates the opening and closing of stoma
- 6. The green pigment in plants that absorbs sunlight
- 7. Vessels that carry water in plants
- 9. Taking in useful substances is called feeding, or _____.