In this cellular respiration experiment, we used germinated and ungerminated P. sativum seeds to explore the effects of temperature on respiration rate. P. sativum seeds are cool-weather plants from Europe and Asia. Due to the cool environment they live in, they have a tolerance to cold temperatures. Even with that tolerance, survival is difficult for them. P. sativum seeds that live in temperatures ranging from 25℃ to 45℃ have low surviva...
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...rate of the germinated P. sativum seed increased as temperature increased. Similar to the larvae, the respiration rate began to decrease at around 40℃. This is due to the effects of the seeds getting hot. As the water around the test tube begins to boil, the germinated seed gets dehydrated and starts to die; germinated seeds require water to survive, and dehydration deprives them of water.
Our results indicate that animals, indeed, require higher respiration rates than plants, as animals have movement and plants do not. Animals require a faster respiration rate to help them to make up the energy that they lost when they move around (Lindeman, 1942). Since plants do not tend to move around, the respiration rate must be slower than animals. Therefore, our results indicating that animals have changed their rate of respiration faster than the plants did not surprise us.
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