plants
Across
- 4. A chemical process used by plants to make glucose and oxygen from carbon dioxide and water, using light energy. Oxygen is produced as a by-product of photosynthesis. Algae subsumed within plants and some bacteria are also photosynthetic.
- 5. the loss of water from leaves by evaporation through the stomata.
- 7. Groups of xylem and phloem tissue in a plant.
- 10. The plant tissue in a leaf which has loosely packed cells and air spaces between them to allow gas exchange.
- 14. Cells of the epidermis, the outer covering layer of an organism.
- 15. Plant tissue containing closely packed cells in the upper layer of a leaf.
Down
- 1. The transport of molecules against their concentration gradient from a region of low concentration to a region of high concentration.
- 2. Cells which open and close the stomata in leaves
- 3. Cells that help the phloem to transport substances by providing energy.
- 6. the transport of dissolved material within a plant.
- 8. Tiny holes in the epidermis (skin) of a leaf. They control gas exchange by opening and closing and are involved in loss of water from leaves. Singular is stoma.
- 9. Cells that have no nuclei and are connected to each other by their cytoplasm.
- 11. Phloem moves sugar that the plant has produced by photosynthesis to where it is needed
- 12. The xylem transports water and minerals from the roots up the plant stem and into the leaves.
- 13. Carbohydrate material lining the xylem vessels providing strength and support.