Science - photosynthesis 0.0 / 5 ? SciencePhotosynthesisGCSENone Created by: SabawarraichCreated on: 10-04-16 15:47 What is photosynthesis? The process by which green plants make their own food. 1 of 30 What do they use as a energy source? The sun 2 of 30 What do all food chains start with? Green plants called producers 3 of 30 Whenever a plant is in strong light it will photosynthesise and produce what? Glucose 4 of 30 What is the best temperature for photosynthesis? About 30oc 5 of 30 What's the temperature when photosynthesis slows down? When it rises above 45oc 6 of 30 What things does a plant need for photosynthesis? Carbon dioxide, water, and light ( a source of energy) 7 of 30 What are the things that plants make by photosynthesis? Glucose and oxygen 8 of 30 What is the equation for photosynthesis? Carbon dioxide + water = glucose + oxygen 9 of 30 Where does photosynthesis take place? Inside small plant cells in small objects called chloroplasts 10 of 30 Why are chloroplasts green? Because they contain the green pigment chlorophyll 11 of 30 Why do cells near the top of the leaf always have a large number of chloroplasts? So that they can absorb sunlight for photosynthesis 12 of 30 In variegated leaves, in what part does photosynthesis only carry out in? The green part of the leaves 13 of 30 Describe what's in a plant cell There is a cell wall, cell membrane, cytoplasm, nucleas, vacuole and chloroplasts 14 of 30 What is the name used for the ingredients water and carbon dioxide? Reactants 15 of 30 What causes photosynthesis to increase? If the carbon dioxide concentrations increased then photosynthesis will increase 16 of 30 Do plants take in food from their roots? No 17 of 30 Where does photosynthesis mainly take place? In leaves, although, any plant cell that has chloroplasts can carry out photosynthesis. 18 of 30 When there is light and chlorophyll present they can make glucose, what is released as a waste product? Oxygen 19 of 30 Which three structures do both plant and animal cells have ? Nucleas, cytoplasm, cell membrane 20 of 30 Which three structures do only plant cells have ? Vacuole, cell wall, chloroplasts 21 of 30 What does the nucleas do? It controls chemical reactions in the cell 22 of 30 What does the cell wall do? It helps keep the plant rigid 23 of 30 What does the vacuole do? It holds water to keep the cytoplasm up against the cell wall 24 of 30 What does the cell membrane do? It controls what goes in and out of the cell 25 of 30 What does the chloroplasts do? It contains the green pigment chlorophyll 26 of 30 What does cytoplasm do? This matter makes up most of the cell, it is where chemical reactions take place 27 of 30 What gas is released as a result of photosynthesis? Oxygenn 28 of 30 How does carbon dioxide enter the plant? Through gaps in the lower epidermis called the stomata 29 of 30 How does water enter plant? Through the roots and then it reaches the leaf through the vein 30 of 30
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