Title: Free Essay: The effect of light intensity on the rate of photosynthesis
Headings: The effect of light intensity on the rate of photosynthesis
The effect of light intensity on the rate of photosynthesis
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Content: This means that as the light moves away then there is less light given to the reaction for photosynthesis to happen. My theory behind this is the following; Photosynthesis is the process that plants use to create energy for themselves. It is best described from the following equation
Water + carbon dioxide sunlight glucose + oxygen
Or
sunlight
6H O +6CO C H O +6O (The balanced equation)
glucose is the resulting energy that is needed by the plant to grow and survive. Oxygen is the waste product that is given out via the stomata pores when they become turgid, this is during the process of respiration. Water is taken in via the root hairs which stick out in to the soil, these are located on the roots themselves, because of these root hairs this gives the plant a bigger surface area in which it can absorb more water. Water is essential for the process of photosynthesis and also to stop the plant from wilting, because plant cells take up water via osmosis which makes them tight or turgid and so the plant stays upright, but if there is no water in the cell then the cell becomes flaccid and loose causing the plant to wilt and die. this is the same with the stomata pores except when they are turgid the pore opens and when flaccid the pore is closed
(Root hairs also collect minerals and nutrients for the plant through active uptake). Carbon dioxide is nessacery for the reaction of photosynthesis to take place, it gets in to the plant as one of the gases in air which then diffuses through the stomata pores (which have to be turgid to let it in and so need water for osmosis). At the same time as this the left over water vapour and oxygen are diffused out also through the stomata which again have to be turgid to let it out.