Investigate the effect of the light intensity on photosynthesis with different concentration of Carbon Dioxide.

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To investigate the effect of the light intensity on photosynthesis with different concentration of Carbon Dioxide.

Investigating the effect of light intensity on photosynthesis   having two samples of a certain plant with 2 different carbon dioxide concentrations.  

H   :There is no significant difference between the rate of photosynthesis of plants in different concentration of  CO  at different light intensities.

H   :There is  a  significant difference between  the rate of photosynthesis of plants in different concentration of CO    at different light intensities.

The oxygen bubble coming off as a result of photosynthesis of plant in certain period of time (5 minutes) is collected and the volume of oxygen bubble is worked out.

This volume is used for working out the rate of photosynthesis of the plant in a certain light intensity and CO   concentration.

Then the rate of photosynthesis of each sample of the plant, which has a different CO  concentration, is recorded in 6 light intensities and the results are compared with each other.

The results confirmed that as the light intensity decreases, the rate of photosynthesis decreases more for the plant with lower concentration of CO   than the plant with higher concentration of CO   .

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As light intensity and CO  are chief external factors, which affect the rate of photosynthesis, and no photosynthesis occurs in the absence of light and CO  is needed in the light independent reactions of photosynthesis.

Introduction:

Hypothesis:

H  :There is no significant difference between the rate of photosynthesis of plants in different concentration of CO  at different light intensities.

H  :There is a significant difference between the rate of photosynthesis of plants in different concentration of CO at different light intensities.

Photosynthesis:

All living organisms need energy for growth and maintenance. Autotrophic organisms are able to use external ...

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