Across
- 4. The green pigment in chloroplasts that absorbs light
- 8. where respiration happens in a cell
- 11. The organ where water is absorbed back into the body from food waste
- 12. What happens to an enzyme's shape if the temperature or pH gets too high.
- 13. Blood vessels that carry blood away from the heart
- 14. The movement of water molecules across a partially permeable membrane
- 15. The process of releasing energy from glucose using oxygen
Down
- 1. The gas required by plants for photosynthesis
- 2. A simple, single-celled organism that lacks a nucleus (e.g., bacteria).
- 3. A biological catalyst that speeds up chemical reactions in the body.
- 5. The movement of substances against a concentration gradient, which requires energy
- 6. The movement of particles from a high concentration to a low concentration
- 7. The specific shape on an enzyme where the substrate binds.
- 9. The tiny air sacs in the lungs where gas exchange takes place
- 10. The muscle that pumps blood around the body