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Photosynthetic Rate Lab Report

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How Calcium Effects Bean Plants Photosynthetic Rate
Tristen Webber Introduction
In this study I measured the growth of a bean plant over 13 days and then measured the photosynthetic rate by measuring the amount of chlorophyll a in the leaves of the plants. Photosynthesis is the process of plants creating glucose from, water, carbon dioxide and sunlight. Photosynthesis depends on the absorption of light from pigments in the plants leaves. I tested how calcium would affect the photosynthetic rate of the bean plant. Calcium helps with plant structure and cell wall development. Calcium also helps with root development. I was looking to see if the increase of nutrients from more developed roots and thicker cell walls would increase the plant's ability to photosynthesize. My prediction was that the calcium would increase the photosynthetic process.
Methods
I followed the procedure for constructing the plants growth chamber, and planting the seeds in the lab manual (Tyler and Cowan 2015). The constant in my plants was; Fafard number 2 potting soil, direct sunlight from sitting on the windowsill, and a constant supply of water. In the experimental plant I …show more content…

You can see the hight difference on graph number three. The chromatography data showed that my experimental plant had a more carotene, chlorophyll a and chlorophyll b compared to my control (graph one). When using the Spectrophotometer to measure the amounts of chlorophyll a and chlorophyll b. For my control I measured the absorption of pigments and got the results of; 0.04,0.03, 0.02. I used the same wavelengths in my experimental and got results of; 0.03, 0.04, 0.05. Comparing my results to the classes control chart I saw that my experimental was closer to the data representing chlorophyll a (graph

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