write the esay on photosynthesis
Answers
Answer:
Photosynthesis is the process by which plants and some microorganisms make substances like carbohydrates.[1] It is an endothermic (takes in heat) chemical process that uses sunlight to turn carbon dioxide into sugars. The sugars are used by the cell as energy, and to build other kinds of molecules.
Answer:
Photosynthesis
Photosynthesis produces energy in the form of glucose it uses water from the soil, carbon dioxide from the air, and energy from the suns light. Photosynthesis takes place in all plants that contain chlorophyll. Photosynthesis mainly takes place in the palisade mesophyll cell in the leaves of plants.
The main reaction is to produce oxygen and glucose, glucose is stored in the form of starch and does not affect osmosis, taking place in the plant. As plants respire both night and day this starch is often used up during the night when photosynthesis cannot take place. The uses of glucose within the plant are for active transpiration, cell division, the production of protein.
The final factor, which contributes, is light. We decided to investigate how this affects the rate of reaction also.
Method ======
We need to find out how the of presence light and the intensity contributes to the rate of photosynthesis. To be able to measure the rate we need a visible sign that photosynthesis is taking place. We will use Canadian pondweed. By counting these bubbles we can tell how fast oxygen is being given off from the photosynthesis. We will place the Elodea in a beaker along with warm water and a bit of Sodium Hydrogen Carbonate (NaHCO3). If it wasn't there then another limiting factor may be the cause of the rate changing instead of just light.
By placing the beaker next to a lamp we can change the light intensity. The weed will be given a set number of minutes each time to adjust to the new level of light intensity.
The rate of reaction will be in number of bubbles per minute (b.p.m).
Constant and Variable factors
The factor that will be changed is light intensity. The factors that will be kept constant are the amount of water the weed is put in, carbon dioxide levels, lamp that is used and temperature.
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