Literary Terms (Examples) Flashcard

Literary Terms (Examples)

Effect of light on photo synthesis essays

Effect of light on photo synthesis essays In order for a plant to photosynthesise it will need three things, light, water and Carbon Dioxide. If there is a lack in any of these things the process of photosynthesis the plant will not photosynthesise properly. In this coursework I am going to look at the effects of light on photosynthesis and I am going to do this experiment by moving the source of light closer and closer to a certain type of plant and I am going to bring the light towards the plant 10cm at a time. I predict that by moving the source of light closer to the plant I would speed up the rate of photosynthesis in the plant. The chlorophyll uses light energy to perform photosynthesis. It can only do this as fast as the light energy is arriving. Chlorophyll actually only absorbs the red and blue ends of the visible light spectrum, but not the green light in the middle which is reflected back. This is why the plant looks green. Chlorophyll is an ENZYME in that it works the best when it is warm but not too hot. If the light level is raised, the rate of photosynthesis will increase steadily but only up to a certain point, beyond that it would not make any difference because then it will be either the temperature of the Carbon Dioxide level which is wrong and which is now the limiting factor. Conversely if the light level is too low, then changing the amount of Carbon Dioxide would not increase the rate raised to match the Carbon Dioxide level. The method of this experiment is not complicated. Cut a stem of Canadian pondweed of about 3cm in length. Fill a test-tube with pond water, and place it in a clamp, and then in a large beaker of cold water. Connect the end of the pondweed to the apparatus. Insert a thermometer into the beaker, and record the temperature at the beginning and end of each experiment, merely as a precaution against a ...

Modern Consumerism Essay Example | Topics and Well Written Essays - 2000 words

Modern Consumerism - Essay Example When one need is fulfilled, there is always going to be another need that pops up requiring attention. That is just the way humans are made. Not necessarily just physical needs need to be met—but rather, the accoutrement of things which humans seem to accumulate over the years one has spent living is a perfect example of this, especially in more developed countries. Consumption is so puzzling to Campbell especially because this insatiability for things is considered an ethnocentric phenomenon, in his view.2 For example, it is considered anathema in some cultures to want things outside of what one already has—not to mention blasphemous to try to attain things for the self. Any kind of achievements that are related to one â€Å"getting ahead† in life is not the norm in small communities. Rather, it is the importance of community that encapsulates one’s decisions—not the self-promotion and self-egotistical self-centeredness that is so evident in many W estern cultures. This self-centeredness is puzzling not only because one knows one can â€Å"never have enough,† but this incessant search in the quest for one’s self-fulfillment—demonstrated in Western culture—is tantamount to blasphemy. In a small town somewhere off the beaten path, this kind of behavior would never be tolerated. This is because, in essence, in the cultures of many nations that are less-developed or not developed at all, community is a big part of who people are. These humble people who grew up with small beginnings are not willing to sell out their communities for fame. It is just not in their natures. What is in human nature, however—which apparently shows up more in Western cultures than not—is this idea of instant gratification and the search for self-actualization that is not found in many places that are rural where the people have less education and