Photosynthesis 0.0 / 5 ? BiologyPhotosynthesis and transpirationGCSEAQA Created by: jess.may_xCreated on: 02-04-19 21:27 What type of reaction is photosynthesis? endothermic - meaning it requires energy 1 of 23 What is the source of the energy for photosynthesis? sunlight 2 of 23 Where does photosynthesis take place? Inside chloroplasts in plants and algae 3 of 23 How do the plants trap their energy source? Trapped in chloroplasts by the chemical, chlorophyll 4 of 23 What does photosynthesis do? Convert carbon dioxide and water to oxygen and glucose 5 of 23 What is the formula for photosynthesis 6CO(2) +6H(2)O -->C(6)H(12)O(6) + 6O(2) 6 of 23 What happens if there's a high concentration of chlorophyll Theres a high rate of photosynthesis 7 of 23 What are the four factors that affect the rate of photosynthesis? Concentration of Chlorophyll, Light Intensity, Temperature, Concentration of Carbon Dioxide 8 of 23 What happens if the temperature gets too high? The enzymes denature and the rate of the reaction drops. 9 of 23 What happens if you carry on increasing the light intensity? The rate of photosynthesis will start to decease past a certain temperature 10 of 23 What are the four limiting factors? Night or day, warm and bright or not, mineral deficient soil, winter 11 of 23 What does a limiting factor do Decrease the rate of reaction 12 of 23 How do you increase the rate of photosynthesis in greenhouses? Get heating and lighting 13 of 23 What would happen if a farmer increases the lighting and heating in a greenhouse? The crops would grow faster, the rate of photosynthesis would increase, and it would be more expensive 14 of 23 What are the four things glucose can convert to in plants? Starch, Fats and Oils, Proteins and Cellulose 15 of 23 What is glucose mainly used for? Respiration 16 of 23 What is cellulose used for? It strengthens cell walls 17 of 23 What is starch and where is it stored? Starch is insoluble and is stored in stems, leaves or roots. 18 of 23 Where are fats and oils stored? Structures, such as seeds 19 of 23 What are proteins needed for? Cell growth and repair. 20 of 23 The bubbles used to measure the rate of photosynthesis in pondweed are full of which gas? Oxygen 21 of 23 What is not a variable that should be controlled when testing the effect of light intensity on plant photosynthesis? Day of the week 22 of 23 Whats the equation for light intensity L = 1 / distance^2 23 of 23
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