Chloroplasts  - structure in plants cells that contains the chlorophyll  ,  Chlorophyll  - green pigment in plant cells that absorbs light energy for photosynthesis  ,  Carbon dioxide and water  - two raw materials of photosynthesis  ,  Glucose and oxygen  - two products of photosynthesis  ,  Light to chemical  - energy change that takes place in plants as a result of photosynthesis  ,  Photosynthesis  - the process carried out by plants that uses light energy to make food  ,  Starch  - chemical used a food store by plants  ,  Iodine  - chemical used to test for starch  ,  Variegated  - a plant whose leaves have areas that lack chlorophyll and are white  ,  Elodea  - an aquatic plant often used to investigate factors affecting the rate of photosynthesis  ,  Input (independent)  - the one variable that is changed in an investigation  ,  Output (dependent)  - the variable that is measured as the results in a an investigation  ,  Light intensity  - a factor that when increased, increases the rate of photosynthesis as it provides more energy   ,  Carbon dioxide  - a factor that when increased, increases the rate of photosynthesis as it provides more raw material  ,  Temperature  - a factor that when increased, increases the rate of photosynthesis up to a point, after which further increases reduce the rate of photosynthesis  ,  Respiration  - process carried out by all living cells to release the energy from glucose  ,  Limiting factor  - any factor that can reduce the rate of a process when in short supply  ,  Percentage change  - change / original X 100  ,  Upper epidermis  - top layer of cells  in a leaf, allows light through to mesophyll layer  ,  Palisade mesophyll  - middle layer of cells in a leaf, main site of photosynthesis  ,  Spongy mesophyll   - allow diffusion of gases in a leaf  ,  Veins  - bring water to the leaf and take glucose away  ,  Lower epidermis  - bottom layer of cells in a leaf  ,  Guard cells  - control the opening and closing of stomata  ,  Stomata  - tiny holes in a leaf to allow gas exchange   ,  Germination  - development of a seed into a new plant (WOW are needed)  ,  Calculating an average  - add a list of numbers, divide the total by the number of numbers added  ,  Bulbs, tubers, runners, plantlets  - four natural methods of asexual reproduction in plants  ,  Commercial uses of plants - food, fuel, raw materials, medicine, aesthetics (make surroundings look nice),

S3 Plants

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