GCSE Biology - Factors Affecting the Rate of Photosynthesis | Limiting Factor Graphs

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** WHAT'S COVERED **
1. Factors affecting the rate of photosynthesis.
Light intensity.
Temperature.
Carbon dioxide concentration.
Amount of chlorophyll.
2. The role of chlorophyll in photosynthesis.
Factors affecting chlorophyll levels (disease, environment, nutrients).
3. Limiting factors for photosynthesis.
How light intensity, carbon dioxide, and temperature limit the rate.
Graphical representation of limiting factors.
Explanation of graph shapes (initial increase, plateau, denaturation).
4. Interaction between limiting factors shown on graphs.
5. Artificially creating optimal conditions for photosynthesis.
Use of greenhouses, artificial light, CO2 enrichment, and paraffin heaters.
Use of fertilisers and pesticides.
Economic considerations for farmers.

** CHAPTERS **
0:00 Introduction: Factors Affecting Photosynthesis
0:35 Role of Chlorophyll
1:18 Limiting Factors and Graphs
1:35 Graph: Effect of Light Intensity
2:01 Graph: Effect of Carbon Dioxide
2:20 Graph: Effect of Temperature
2:46 Graphs: Interacting Limiting Factors
4:43 Economic Factors for Farmers

** PLAYLISTS **
   • GCSE Maths (9-1)  

   • GCSE Biology (9-1)  

   • GCSE Chemistry (9-1)  

   • GCSE Physics (9-1)  

   • Alevel Biology  

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