Science // Biology // B1 // Photosynthesis //
- Created by: ameburrell9
- Created on: 26-11-14 22:17
View mindmap
- Photosynthesis
- Photosynthesis is the chemical change which happens in the leaves of green plants.
- It is the first step towards making food
- During this reaction, carbon dioxide and water are converted into glucose and oxygen.
- The reaction requires energy in the form of sunlight, and chlorophyll must also be present.
- Plants are produces, they produce their own food
- Plants produce their food via photosynthesis
- Plants are produces, they produce their own food
- The reaction requires energy in the form of sunlight, and chlorophyll must also be present.
- During this reaction, carbon dioxide and water are converted into glucose and oxygen.
- Photo of photosynethesis
- Needs for photosynthesis to occur;
- Chlorophyll (not used up)
- CO2 (from the air)
- Water (from the soil)
- Sunlight energy (any light except green) (not used up)
- What photosynthesis produces;
- Glucose
- Oxygen (waste product)
- Video about it
- Factors affecting photosynthesis
- Light level
- Without enough light, a plant cannot photosynthesis very fast, even is there is plenty of water and carbon dioxide. Increasing the light intensity will make photosynthesis faster.
- Carbon dioxide level
- Photosynthesis can be limited by the level of carbon dioxide. Even if there is planty of light a plant cannot photosynthesise if it has run out of carbon dixoide
- Temperature
- If it gets too cold the rate of photosynthesis will slow right down. If it gets too hot then plants cease to be able to photosynethesise.
- Light level
Comments
No comments have yet been made