Your science class is observing the organisms found in local pond water. You have discovered this paramecium and are hoping to observe how the paramecium injects food. Your lab partner suggests using an electron microscope to see all the details in 3-D. You disagree: you believe a light microscope must be used. Using the table, support your decision to use a light microscope.
A) The paramecium is not very small It can easily be observed using the light
microscope
B) You want to observe life processes. You cannot use an electron microscope
to observe living specimens.
C) In order to see the paramecium, you must stain the slide. You cannot stain
a slide if using an electron microscope.
D) The beam of electrons used in the electron microscope is too dangerous to be used in a high school classroom environment.

A. The paramecium is not very small It can easily be observed using the light microscope.

B. You want to observe life processes. You cannot use an electron microscope  to observe living specimens.

Explanation:

The slipper and elongated shape of the paramecium is visible to the naked eye. It is easily seen under the light microscope.

Electron microscope uses a beam of electrons and not beam of light as in light microscope. Living cells cannot be observed under electron microscope because of the use of vaccum in which samples are placed. Vacuum is used because the electron beam moves better in it.

Live samples are rarely stained as compared to non-living samples.

Since students intend to observe how paramecium injects food, it is advised to use a light microscope.

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did you fail the test? xd