An Investigation of photosynthesis for silver beet. The aim of this investigation is to find the average rate of photosynthesis for silver beet compared to gold beet. Methods DPIP is a measure to help find the rate of photosynthesis. The rate was calculated using the slope of the absorbance/time graphs Appendix a. The rate was then calculated by dividing the change in absorbance over the change in time, an example of this can be found in appendix B. 3 Trials conducted to find out the rate of photosynthesis for silver beet. These trials where trailed against gold beet using a two sample T test to see if the data was of normal distribution (Mosse, 2015). Results To find the normal rate of photosynthesis for silver beet, the calculated average …show more content…
dpip turns colourless when electrons are transported which gives us an estimation on the rate of photosynthesis (Mosse, 2015) Temperature can have a great effect on photosynthesis, as generally the higher temperature the higher rate of photosynthesis. Photosynthesis is a chemical reaction, and as temperature rises so does the reaction, however temperatures above 40 degrees slow the reaction down, this is because the enzymes involved in photosynthesis are temperature sensitive and can be destroyed if the temperature is to great. (Nature, 2012) The aims of this investigation are to test the effects temperature has on the rate of photosynthesis of silver beet. silver beet will be tested against four different temperatures to see how the rate differs. …show more content…
each condition reacted differently to one another based on their temperatures and altered the rate of photosynthesis. Room Temperature did not alter the rate of photosynthesis, this is because it was a normal climate and did not increase or slow down the enzyme reaction within the chloroplast. When the chloroplast was subjected to 80 Degrees, we can assume the protein was broken down, as the active site of the enzyme would become distorted, making the substrate no longer fit, denaturing the enzyme, thus no reaction occurring (Nature, 2012). For this reason we can see why the 37 degrees reaction was slowed. For 0 Degrees the enzyme was slowed but as the initial temperature began to wear off we can see that a reaction began to occur, as the reaction needed heat to occur the light from the lamp provided it with this, so the reaction could