Question

To observe living microbial cells in a drop of pond water, which of the following would you use?

• A. Microscope
• B. Hand lens
• C. Telescope
• D. None of the above

Answer 1

The correct option is option (A):

Explanation for the correct option:

1. Microscope is an apparatus used for observing minute organisms invisible to the naked eye.
2. There are many types of microscopes namely simple microscopes, compound microscopes, electron microscope etc.
3. Microscope can use to examine the microbial cells in a drop of pond water.

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Explanation for incorrect options:

Option (B):

Telescope is used to observe objects which are far away from the eye.

Option (D):

A hand lens magnifies small things that are already visible to the naked eye.

Final answer: To examine living microbial cells in a drop of water, a microscope is used.