| A | B |
|---|
| Carbon dioxide | Gas used during photosynthesis |
| Oxygen | Gas produced during photosynthesis |
| Water | Used during photosynthesis and obtained from the roots |
| Xylem | Carries water to the leaves |
| Chlorophyll | Light absorbing pigment |
| Glucose | Six carbon sugar made during photosynthesis |
| Sunlight | Source of energy for photosynthesis |
| Chloroplast | Contains chlorophyll |
| Cuticle | Top and bottom surface of leaves |
| Epidermis | Top and bottom layers of cells in a leaf |
| Wax | Chemical which makes cuticle waterproof |
| Evaporation | Stopped by waxy cuticle |
| Palisade | Cells which are the main site of photosynthesis |
| Spongy | Description of cells which are surrounded by air spaces |
| Photosynthesise | Only the palisade, spongy and guard cells do this |
| Transparent | Property of the upper epidermis |
| Stomata | Pores in a leaf |
| Guard cells | Bend open when turgid (full of water) |
| Underneath | Where you find most stomata on a leaf |
| Xylem | Transports water and minerals |
| Phloem | Transports sucrose and other organic molecules |
| Sucrose | Main sugar found in the phloem |
| Air spaces | Help diffusion in the spongy layer |
| Absorption | Happens to light in a chloroplast |
| Reflected | Happens to green light on a leaf |
| Light intensity | Limits the rate of photosynthesis when it's warm and there is plenty of carbon dioxide |
| Temperature | Limits photosynthesis when there is plenty of light and carbon dioxide |
| Enzymes | Work slowly when its cold |
| Limiting factor | Name given to something which can slow down the rate of photosynthesis |
| Storage | What starch is used for |
| Respiration | Process which converts glucose and oxygen to carbon dioxide and water |
| Support | What cell walls are for |
| Cellulose | Used to make cell walls |
| Nitrogen | Element in all proteins which is not in sugars |
| Protein | If a plant has nitrates it can combine them with sugar to make this molecule |
| Phosphorus | Element needed to make DNA as well as C, H, O and N |
| Magnesium | Metal atom at the centre of a chlorophyll molecule |
| Ethanol | Chemical used in experiments to remove the green colour from leaves |
| Iodine | Chemical used to test for starch |
| Bubbles | What you count to see how fast a pond plant photosynthesises |
