Euglena Essay

898 Words2 Pages

Introduction:
Euglenas are unicellular organisms classified into the Kingdom Protista, and the Phylum Euglenophyta. All euglena have chloroplasts and can make their own food by photosynthesis. They are not completely autotrophic though, euglena can also absorb food from their environment; euglenas usually live in quiet ponds or puddles. (Biologycorner.com, 2016) Euglena is a interesting specie because they are combination of plant and animal. They can feed themselves through photosynthesis like a plant. Also, they move like animal. People have argued for many years about which Kingdom to put them. Most scientists put them in the protest Kingdom. So the question is that how does tempura affect Euglena growth. Personally, if the there is higher …show more content…

Add 100 mL of growth media from the prepared stock solution to bioreactor (300-500mL plastic bottle).
2. Add 5 mL of Euglena to bioreactor.
3. Cover your bioreactor with a lid or stopper and gently invert to mix the solutions. Remove the lid or stopper after the solutions have mixed.
4. Measure the initial absorption of your algae sample in a spectrophotometer (ensure the wavelength is set to 370nm).
5. Label the bioreactors according to the temperature.
6. Plug your bioreactor with cotton wool.
7. Place in refrigerator.
8. Repeat steps 1-6 with another bioreactor.
9. Repeat steps 1-8 with the other temperatures.
10. Measure the absorption of your sample 2-3 times per week for a period of 2 weeks. Remember to gently invert your solution each time before taking your …show more content…

Through standard curve, we know the relationship between absorbance and cell concentration is that the more absorbance the higher cell concentration. The data was measured by spectrophotometer which can be used to measure the concentration of a known chemical substance. The higher value of dada means that the higher concentration. At the same time, it means that the higher rate of growth. The table and graph directly reflect the relationship between temperature and speed of growth of Euglenas. The graph has shown a trend that first rise after falling. The sharpest change belong room temperature and the gentle change is that when Bioreactors in fridge. Therefore, we can draw a conclusion that when in room temperature (about 23) there is the fastest speed of growth. Excessive temperature will affect the growth of

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