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Electron Microscope Advantages and Disadvantages

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Electron Microscope Advantages and Disadvantages

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Questions and Answers

What is the biggest advantage of an electron microscope?

It provides high magnification and resolution. (correct)

It is relatively inexpensive.

It can be used to examine living material.

It is widely available to all biologists.

Why do scientists question the usefulness of electron microscope images?

Because they are not detailed enough.

Because the images are too large.

Because the tissue is dead and heavily processed. (correct)

Because they are too expensive to obtain.

What is required to operate an electron microscope?

A constant source of electricity. (correct)

A constant source of heat.

A constant source of light.

A constant source of water.

Why are electron microscopes typically kept in a separate room?

Because they require a controlled environment. Signup and view all the answers

What is a limitation of electron microscopes in terms of access?

Few scientists outside of top research laboratories have access to them. Signup and view all the answers

Why must specimens be examined in a vacuum in an electron microscope?

Because air would scatter the electron beam. Signup and view all the answers

Study Notes

Electron Microscope: Advantages

Provides higher magnification and resolution than a light microscope, allowing for more detailed observation
Enables discovery of new structures inside cells and cell organelles, enhancing understanding of their function
Reveals complicated structures within cell organelles

Electron Microscope: Disadvantages

Requires specimens to be examined in a vacuum, making it impossible to observe living material
Specimens must be dead, sliced thinly, treated with strong chemicals, and placed in a vacuum before examination, questioning image validity
Very expensive to purchase and maintain
Requires a large, dedicated space with controlled temperature, pressure, and internal vacuum
Needs a constant electricity supply
Limited accessibility for most biologists, as they are typically only available in top research laboratories

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Description

Discover the benefits and drawbacks of using electron microscopes in biology, including higher magnification and resolution, and their role in understanding cell structures and functions.