An Experiment to Investigate the Effect of Light Intensity on the Rate of Photosynthesis

Experiment to investigate the effect of light intensity on the photosynthetic rate Introduction Photosynthesis occurs in the chloroplasts of green plant cells, which produce monosaccharides containing carbon dioxide and water and release sugars and oxygen. The chemical formula of photosynthesis is as follows. [IMAGE] 6 CO 2 + 6 H 20 C 6 H 12 O 6 + 6 O 2 has repeatedly proved that plants need light for photosynthesis.

Experiments to investigate the effect of light intensity on the photosynthetic rate Introduction Photosynthesis occurs in the chloroplasts of green plant cells; it can produce monosaccharides with carbon dioxide and water leading to sugar and oxygen release.

Photosynthesis is the process by which plant cells convert carbon dioxide (CO 2) into food sugar by light energy. The purpose of this experiment was to determine whether different light intensities had different effects on the photosynthesis of the two plants. One plant grows under normal light conditions and the other grows under shadow conditions. Each plant was placed in a sealed plastic box and allowed to acclimate. Using a vernier CO 2 electrode, the CO 2 concentration was measured at 1 hour intervals per minute over 5 minutes. This process is repeated for different light intensities measured using a light sensor. Overall, the rate of change in CO2 concentration in both plants has decreased. Under specific light intensity, the rate of change in carbon dioxide concentration becomes negative (about 45 arbitrary units for shade plants and about 80 arbitrary units for light plants)

It is a plant. For example, when examining how the light intensity affects the photosynthesis speed, you can create a "photosynthetic photoresponse curve" - ​​photosynthetic rate at different light intensities. The shape of the curve varies depending on plants and plants with different lighting environments. "Optical response curve" itself is a form of measurement. How do you think about the light response curve of leaves growing in the shade (the first variable) compared to the leaves growing under the sun? In this case, the sun and shadow are the second variables. Comparative photoresponse curve is a standard research technique of plant physiology and ecology