Cellular Respiration Essay

1111 Words 5 Pages
PURPOSE
To determine how germination and temperature of environment effect respiration rate of seeds.

BACKGROUND INFORMATION
Cellular Respiration: Is the controlled release of energy from organic compounds in cells to form ATP. Sugar + Oxygen → Carbon dioxide + Water + Energy (ATP). In eukaryotic organisms, respiration occurs to maximize ATP production; this is contrary to anaerobic respiration, which occurs during the absence of a ready supply of oxygen (mostly in prokaryotic organisms). Plants are autotrophs, meaning that the provided their own food. This is unlike animals, who need to digest other organisms for energy. Because of the autotrophic nature of plants, they perform photosynthesis and cellular respiration simultaneously.
Glycolysis proceed cellular respiration, and it is the process in which glucose, which is produced by the plant itself, is
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If you place a living organism in a closed system, it is possible to measure its consumption of oxygen. The respirometer is a device used to measure the rate of respiration of a living organism by measuring the rate of exchange of oxygen and carbon dioxide. They allow investigation of how other factors like, age, temperature, and chemicals, effect respiration rate. The KOH that is added to the cotton in the experiment is used to absorb the CO2 and convert it into a solid precipitate. Water moves within the pipette because as an organism takes up O2, it generates a proportional amount of CO2, however, because the CO2 is absorbed by the KOH, this results in a drop in pressure inside the respirometer, because of the drop in O2 partial pressure in the container. The water then moves down the pipette because of this drop in partial pressure; it tries to maintain equilibrium within the container. This is why we can measure the rate of

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