Euglena

Euglena Experiment Biology 101         Euglena are maven-celled organisms in the Protista kingdom. They are usually photosynthetic autotrophs but they fill the ability to live as heterotrophs b y ingesting food. They do this when photosynthesis is not possible. Euglena are highly motile and reproduce rapidly. In this experiment I intend to collect enough selective information to back up my hypothesis. My hypothesis is that the Euglena are attracted to distressingness.

        The material that I used were a microscope, a clean sugarcoat gliding, a cover slip, a small dish filled with water, a piece of construction paper, a colony of Euglena and a dropper.

commencement I prepared my microscope by placing the small clear glass dish full of water over the light initiation in the base of the microscope to absorb heat. Next I rigid two drops of Euglena in the center of the clean glass sea-coast. I consequently took a cover slip and placed one edge on the side of the Euglena and lowered it down easy like I was closing a book. I did this to retard trapping air bubbles. I then cut a small piece of construction paper to put almost the slide so that half of the square containing Euglena was in the dark and the other half was in the light. Then I positioned the slide so that it was in my product line of view.



I used the 4x see objective lens to locate the Euglena and then switched to the 10x objective and rivet in on the specimens. I then timed a minute on my watch and counted how galore(postnominal) Euglena were in my field of view. I repeated these steps threesome times. I then started a control group of Euglena by making the slide the same way but without placing the construction paper on top. I timed a minute and counter how many Euglena were in my field of view. I repeated this step three times.

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