Across
- 4. An organism, such as bacteria or fungi, that breaks down dead plants and animals, returning nutrients to the soil.
- 7. The process by which green plants use sunlight to convert water and carbon dioxide into food (glucose) and oxygen.
- 8. Plant tissue that carries the food made in the leaves to other parts of the plant.
- 11. A network of interconnected food chains showing how energy and nutrients flow through an ecosystem.
- 14. An artificial light source designed to stimulate plant growth by emitting light appropriate for photosynthesis.
- 16. The movement and exchange of matter, like nutrients and gases, between living and nonliving parts of the environment.
- 20. A type of sugar that plants produce during photosynthesis, which serves as their food and energy source.
- 22. A green pigment in plants that absorbs light, helping to convert it into energy for photosynthesis.
- 23. An organism that creates its own food through photosynthesis and serves as a food source for other organisms in a food chain.
- 24. The transfer of energy from the sun to plants (producers) and then to animals (consumers) in a food chain.
- 26. A molecule that carries energy within cells; produced during photosynthesis and used for various cellular activities.
- 28. A graph showing the rate of physiological activity plotted against wavelength of light, indicating which wavelengths are most effectively used in a specific chemical reaction.
- 29. An organism, like a plant, that can make its own food using sunlight, water, and carbon dioxide.
Down
- 1. The first stage of photosynthesis where light energy is captured and used to make energy-rich molecules.
- 2. A graph showing how much light is absorbed by pigments at each wavelength.
- 3. A method of growing plants without soil, using mineral nutrient solutions in water.
- 5. The inner tissue of a leaf where most photosynthesis occurs.
- 6. An environmental condition that restricts the growth, abundance, or distribution of an organism or a process, such as photosynthesis.
- 9. A community of living things, along with their environment, interacting as a system.
- 10. (Light-Independent Reactions) The second stage of photosynthesis where the energy-rich molecules from the first stage are used to produce glucose.
- 12. Plant tissue that transports water from the roots to the leaves.
- 13. A stack of thylakoids within a chloroplast.
- 15. A gas in the air that plants use, along with water and sunlight, to make their food during photosynthesis.
- 17. A membrane-bound compartment inside chloroplasts where the light-dependent reactions of photosynthesis take place.
- 18. A substance that gives color to plant parts; in photosynthesis, pigments like chlorophyll absorb light energy.
- 19. A gas produced by plants during photosynthesis and released into the air; it’s essential for animals and humans to breathe.
- 21. Tiny openings on the underside of leaves that allow gases like carbon dioxide and oxygen to move in and out of the plant.
- 25. A part of plant cells that captures sunlight to help make food through photosynthesis.
- 27. An energy-carrying molecule produced during the light-dependent reactions of photosynthesis, used in the Calvin cycle to help make glucose.