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• Chlorophyll


  Green substance found inside chloroplasts
• Root


  Plant organ used to take water out of the soil
• Cell wall


  Tough wall around plant cells, helps to support the cell
• Nucleus


  The 'control centre' of a cell
• Absorb


  To take in, for example when water passes from the soil into a root
• Light


  The source of energy for photosynthesis
• Stem


  Plant organ used to take water to the leaves and to support the leaves
• Photosynthesis


  Process that plants use to make their own food
• Leaf


  Plant organ used to make food by photosynthesis
• Chloroplast


  Green disc containing chlorophyll, found in plant cells
• Photosynthesis is the process by which plants manufacture carbohydrates (organic) from raw materials using energy from light
• Chlorophyll is the green pigment that makes plants look green and is found inside chloroplasts
• Chlorophyll absorbs sunlight energy and converts it to chemical energy available for the formation of carbohydrates
• Non-green plants can also photosynthesize
• Plants use some of the glucose they produce from photosynthesis for respiration, which occurs in the mitochondria
• Glucose which is soluble is converted into insoluble starch for storage in roots, leaves and stems
• Glucose is turned into lipids (fats & oils) for storing in seeds
• The movement of sucrose and other substances like amino acids around a plant is called translocation
• Nectar is a sugar solution composed of one disaccharide (sucrose) and two hexoses (glucose and fructose)
• Glucose is combined with nitrates (collected from the soil) to make amino acids, which are then made into proteins
• Without nitrates, the amount of chlorophyll in leaves reduces, which reduces the plant's ability to photosynthesize and grow properly
• Magnesium deficiency causes yellowing of leaves, and nitrogen deficiency causes poor growth
• Photosynthesis can be limited by light intensity, carbon dioxide concentration, and temperature
• Farmers can use their knowledge of these limiting factors to increase crop growth in greenhouses, such as using artificial light and paraffin lamps
• Experiments can be used to test for the need of chlorophyll, light, and carbon dioxide for photosynthesis, using appropriate controls