Photosynthesis and Carbon Cycle

123456789101112
Across
  1. 2. green pigment in plant cells that absorbs sunlight for photosynthesis.
  2. 6. The process where green plants use sunlight, carbon dioxide, and water to make glucose (food) and release oxygen
  3. 7. A chemical reaction where a substance reacts with oxygen to release heat and light (burning).
  4. 10. A simple sugar produced in photosynthesis and used by organisms for energy.
  5. 11. A layer of tightly packed, column-shaped cells in a leaf that contains many chloroplasts and is the main site of photosynthesis.
  6. 12. minerals needed by plants to make chlorophyll
Down
  1. 1. cell organelle in plant cells where photosynthesis takes place.
  2. 3. dioxide A colorless gas in the air that plants use for photosynthesis and humans/animals exhale.
  3. 4. A gas in the air that living things need for respiration; plants release it during photosynthesis.
  4. 5. A small rock or particle in space, smaller than an asteroid.
  5. 8. Tiny openings or pores on the surface of a leaf (mostly on the underside) that allow gases such as carbon dioxide, oxygen, and water vapour to move in and out of the plant.
  6. 9. age A long period in Earth’s history when global temperatures drop and large parts of the planet become covered with ice.