Introduction This lab is to help understand how certain components affect the growth of a plant, or in this case, duckweed (lemna minor). In this specific study we examined how pH would affect the growth of the plant. We studied it at a control, pH5, pH6, and pH7. Materials duckweed (lemna minor) test tubes water test tubes rack tape that can be written on test tube spatula (optional) solution to change the pH of the water pH strips Methods Prepare the test tubes for the duckweed and the water
most duckweed fronds left and the lower the pH gets, the less duckweed survives. Acidity has an effect on the rate of photosynthesis because the enzymes required in the process of photosynthesis only function properly at a pH of between 6 and 8 (Egle & Brown, 2005). All the solutions in the experiment that had a pH of less than 6 did not allow the duckweed to survive or to be in a good condition, this is because the pH was too low for photosynthesis to take place which resulted in the duckweed dying
Mesocosm Design Lab (Practical #5) Anshul Krishnan : 11M Task: Design, set up, monitor and evaluate a sealed mesocosm, with a view to achieving a sustainable model. ———————————————————————————————————————— Defining The Problem: A Mesocosm is a designed natural environment which can be manipulated and can be controlled. The Main purpose of building a mesocosm is to be able to observe nature’s balance without human intervention; something that has been destroying our planet’s environment since