Compare the structure and function of various types of microscopes: dissecting, compound light, transmission electron, and scanning electron microscopes.

Answer and explanation;

Dissecting Microscope

The dissecting microscope is a light microscope that uses low magnification.  

Magnifies up to 40x.

The dissecting microscope is used to view larger organisms, organs, tissues, and small objects that can be seen with the naked eye but need more magnification to view details.

Compound Light Microscope

The most commonly used.  Magnifies from 40x up to 1,000x.

Specimens can be dead or alive.

The compound light microscope can be used with a dye on the slide to view tissue samples, blood, microorganisms in pond water, microscopic cells.  

The microscope allows light to pass through a specimen and uses two lenses to form an image.

Electron Microscope

-It is a microscope that uses a beam of electrons instead of light to magnify objects up to 500,000 times actual size. Electron microscopes have a much higher resolving power (higher clarity) than light microscopes because of the use of electrons instead of light.

Electron microscopes allow scientists to view structures within a cell. Electron microscopes can only view dead specimens.

Two types of electron microscopes:

1. Scanning Electron Microscope (SEM)

2. Transmission Electron Microscope (TEM)

Scanning Electron Microscope (SEM)

Useful for studying details of a specimen's surface.  Image is in 3-D.  

-An electron beam passes over the specimen's surface and displaces electrons, which are then focused on a screen to form an image. Uses a conductive material (gold metal) on the specimen.

Transmission Electron Microscope (TEM)

Mainly used for studying internal structures of cells.

Image created is 2-D.

Electromagnets magnify the image by passing a beam of electrons through a thin specimen.

its temperature is increasing. this causes molecular vibrations to increase.