This is not strictly true, as in fact the triose phosphate G3P is first incorporated into the C12 sugar sucrose, a dimer of glucose and fructose.
Factors affecting the rate of photosynthesis 3.
Carbon Dioxide Carbon dioxide is used Gcse photosynthesis make sugar in the photosynthesis reaction. An increase in the concentration of carbon dioxide gives an increase in the rate of photosynthesis. It is difficult to do this out in the open air but is possible in a greenhouse.
The rate of photosynthesis increases linearly with increasing carbon dioxide concentration from point A to B on the graph. Gradually the rate falls of and at a certain carbon dioxide concentration the rate of photosynthesis stays constant from point B to C on the graph.
Here a rise in carbon dioxide levels has no affect on the rate of photosynthesis as the other factors such as light intensity become limiting. Many crops such as tomatoes and lettuce give higher yield when grown in greenhouses. Farmers add additional carbon dioxide into the greenhouse to increase the concentration and so the rate of photosynthesis of the crops.
The additional cost of the carbon dioxide is worthwhile because of the increased yield.
Some companies have used this to great environmental use. Rather than pump waste carbon dioxide into the atmosphere as a pollutant they redirect it into big greenhouses where plants such as tomatoes use it during photosynthesis.
This not only reduces their carbon footprint but gives an additional profitable product.Photosynthesis igcse. 1. PHOTOSYNTHESIS • Photosynthesis is an important process because it converts light energy to chemical energy which is stored as glucose and eventually converted to starch for long term storage.
• This chemical energy is released when glucose is broken down during respiration.
GCSE Biology Photosynthesis Carla. Extracts from this document Introduction. Experiment to investigate the effect of Carbon Dioxide on the Rate of Photosynthesis Aim: To find out whether the increase in carbon dioxide affects the rate at which oxygen is released (this will effectively measure the rate of photosynthesis) from a Canadian pondweed, elodea.
In a process like photosynthesis which is affected by more than one factor, its rate is limited by the factor which is closest to its minimum value.
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PHOTOSYNTHESIS. Its importance and factors controlling the rate of plant photosynthesis. Doc Brown's Biology Revision Notes. Suitable for GCSE/IGCSE/O level Biology/Science courses or equivalent. GCSE Science Quick Links GCSE Biology Worksheets GCSE Science AQA Past Papers GCSE Science Edexcel Past Papers GCSE Science OCR Past Papers OCR Gateway GCSE Science Revision Checklist New OCR Gateway GCSE Science () Exam Revision Checklist New OCR 21st Century GCSE Science () Exam Revision Checklist.