Across
- 2. The overall movement of solvent molecules in a solution across a partially permeable membrane, from a dilute solution to a more concentrated one.
- 3. The type of sugar found in the phloem of plants and used as table sugar.
- 5. Ion from a naturally occurring salt.
- 12. A device used for measuring the rate of water uptake by a plant.
- 13. Tall, column-shaped cell near the upper surface of a plant leaf.
- 16. The transport of sugars (mainly sucrose) and other soluble compounds in the phloem tissue of a plant.
- 18. A specialised cell located in the phloem tissue of plants. They pump sucrose into sieve cells.
- 22. A long-chain molecule made by joining many smaller molecules (monomers) together.
- 27. An organism such as a plant that makes its own food using photosynthesis.
- 28. A pair of _____cells open and close plant stomata.
- 30. A series of enzyme-catalysed reactions carried out in the green parts of plants. Carbon dioxide and water combine to form glucose. This process requires energy transferred by light.
- 31. A single factor that, when in short supply, can limit the rate of a process such as photosynthesis.
- 33. A tiny pore in the lower surface of a leaf, which, when open, allows gases to diffuse into and out of the leaf.
- 34. The random movement and spreading of particles. There is a net (overall) _________of particles from regions of higher concentration to regions of lower concentration.
Down
- 1. A series of reactions occurring in all living cells, in which glucose is broken down to release energy.
- 4. The amount of something found in a certain volume of another substance. For example, the amount of a solute dissolved in a certain volume of solvent.
- 6. How quickly something happens.
- 7. The sugar produced by photosynthesis and needed for respiration.
- 8. A polymer made up of amino acids.
- 9. Plant cell walls are made of tough ________, which support the cell and allow it to keep its shape.
- 10. A process in which one gas diffuses across a membrane and another gas diffuses in the opposite direction.
- 11. A compound that contains nitrogen in the form of a nitrate ion.
- 14. A polymer carbohydrate that is made by the joining together of glucose molecules.
- 15. A liquid or a gas.
- 17. The movement of particles across a cell membrane from a region of lower concentration to a region of higher concentration (against the concentration gradient). This process requires energy.
- 19. A green disc containing chlorophyll, found in plant cells. This is where the plant makes glucose through photosynthesis.
- 20. Living tissue formed of sieve tubes and companion cells that transports sugars and other soluble compounds around a plant.
- 21. An organism that belongs to a kingdom of eukaryotic and mainly single-celled organisms.
- 23. The total mass in living organisms, usually shown as the mass after drying.
- 24. A diagram that uses arrows to show the flow of energy through organisms that depend on each other for food.
- 25. A type of reaction in which energy from the surroundings is transferred to the products, e.g. photosynthesis.
- 26. The flow of water into a root, up the stem and out of the leaves.
- 29. A type of polymer that is combined with cellulose in some plant cell walls to make the cells woody, e.g. in xylem cells.
- 32. A substance in a large group of compounds that includes fats and oils.