Photosynthesis and Respiration

                      June 22nd, 2017

Question:

How does light affect the rate of production/ consumption of CO2 and 02 in Pelargonium hortorum leaves?

Hypothesis:

If the amount of light increased, then the rate of carbon dioxide consumption and oxygen production will increase.

Prediction:

If the hypothesis is true, then the amount of carbon dioxide will go down and the amount of oxygen will go up when the plant is exposed to the light.

Results:

Table 1:The Effect of Light on the Rate of Oxygen/ Carbon Dioxide Production and Consumption

	CO2 Rate of Gain/ Loss (ppt/min)	O2 Rate of Gain/ Loss (ppt/min)
In the dark	0.28214	0.00064972
In the light	-0.12243	-0.0000081018

There was a higher rate of carbon dioxide consumption and oxygen production with exposure to light.

Conclusion:

This experiment supported the hypothesis that if the amount of light increased, then the rate of carbon dioxide consumption and oxygen production will increase. The consumption of carbon dioxide becomes more negative when exposed to light, which means there in more carbon dioxide being taken in by the plant.