Photosynthesis
Name: ______________________ Date: ____________
Use the clues to fill in the crossword.
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Across
- 2. Gas in the air that we need to breathe (6)
- 8. Synthesis of carbohydrate from carbon dioxide and water (14)
- 10. A chemical substance that is present at the start of a chemical ___ (8)
- 12. A process in which one or more substances are changed into others (8)
- 13. A surface on which an organism grows or is attached (9)
- 15. Living thing that grows in soil and makes its own food (5)
- 16. Clear liquid we drink that falls as rain (5)
Down
- 1. Depending on free oxygen or air (7)
- 3. How plants make food from sunlight (14)
- 4. An essential structural component of living cells and source of energy for animals (12)
- 5. A monosaccharide sugar that has several forms (7)
- 6. Any of several complex proteins that are produced by cells and act as catalysts in specific (6)
- 7. Living or active in the absence of free oxygen (9)
- 9. Commodities offered for sale (7)
- 11. A substance that initiates or accelerates a chemical reaction without itself being affected (8)
- 14. A nucleotide derived from adenosine that occurs in muscle tissue (3)