To Investigate the Effect of Light Intensity on
The Rate of Photosynthesis
Predication
As it is seen in figure 1 that in order for any plant to photosynthesis it need three main raw materials:
. Water
2. Carbon Dioxide
3. Light
These are also known as 'limiting factors' of photosynthesis (another limiting factor that has not been mentioned above is temperature), therefore if the limiting factors are increased the rate of photosynthesis should also increase.
Carbon Dioxide + Water Sugar + oxygen Sunlight
Figure 1. Formula for Photosynthesis
From figure 1 the fact that without light photosynthesis could not happen could also be concluded. This is proven from a previous experiment, which is set up to compare if light is limited would the plant still produce glucose as food. This is done by setting up a plant that had been given all the raw materials to photosynthesis, compared to a plant that had light limited. As the result of this experiment, when iodine solution, which is used to test for glucose, is added to the decolourised plant, which had all the right raw material to photosynthesis, it turned blue-black which mean glucose had been produced. And when iodine solution is added to the decolourised plant with light limited it stayed reddish brown, which showed that glucose had not been produced as.
The Rate of Photosynthesis
Predication
As it is seen in figure 1 that in order for any plant to photosynthesis it need three main raw materials:
. Water
2. Carbon Dioxide
3. Light
These are also known as 'limiting factors' of photosynthesis (another limiting factor that has not been mentioned above is temperature), therefore if the limiting factors are increased the rate of photosynthesis should also increase.
Carbon Dioxide + Water Sugar + oxygen Sunlight
Figure 1. Formula for Photosynthesis
From figure 1 the fact that without light photosynthesis could not happen could also be concluded. This is proven from a previous experiment, which is set up to compare if light is limited would the plant still produce glucose as food. This is done by setting up a plant that had been given all the raw materials to photosynthesis, compared to a plant that had light limited. As the result of this experiment, when iodine solution, which is used to test for glucose, is added to the decolourised plant, which had all the right raw material to photosynthesis, it turned blue-black which mean glucose had been produced. And when iodine solution is added to the decolourised plant with light limited it stayed reddish brown, which showed that glucose had not been produced as.