2.02 Microscopes

Transmission Electron Microscope (TEM)

a microscope that passes an electron beam through very thin sections stained with metal atoms and is primarily used to study the internal ultrastructure of cells. - Has the greatest magnification power.

compound light microscope

a microscope that shines light through a specimen and has two lenses to magnify an image (Ocular lens and Objective lens)

dissecting microscope

A light microscope that uses reflected light to form a virtual image. Used for examining organisms or objects at relatively low magnifications.

Scanning Electron Microscope (SEM)

A microscope that uses an electron beam to scan the surface of a sample, coated with gold or metal atoms. the sensors receive the reflected electrons and produce a very detailed image of its object's 3 dimension surface.

Which is a difference between a compound light microscope and a transmission electron microscope? A). The compound light microscope can only view specimens in black and white, while the transmission electron microscope has color. B). The compound light microscope can view living things, but the transmission electron cannot. C). The compound light microscope examines the surface of a cell, and the transmission electron microscope examines internal parts of the cell. D). The transmission electron microscope is used for dissections, while the compound light microscope is not.

B). The compound light microscope can view living things, but the transmission electron cannot.The compound light microscope examines the surface of a cell, and the transmission electron microscope examines internal parts of the cell.

What would be the best microscope to view living single-celled organisms in a sample of pond water? A). Transmission electron microscope B). Scanning electron microscope C). Compound light microscope D). Dissecting microscope

C). Compound light microscope

The total magnification of a specimen viewed under a compound light microscope is determined by: A). the power of the objective lens added to the power of the ocular lens B). the magnification power of the ocular lenses used C). the power of the objective lens multiplied by the power of the ocular lens D). the magnification power of the objective lenses used

C). The power of the objective lens multiplied by the power of the ocular lens

An advantage of light microscopes compared to electron microscopes is that light microscopes: A). allow you to view the surface of cells in greater detail than electron microscopes B). have a higher magnification capability because they use natural light C). have a greater resolution available because they use white light D). allow you to view living cells, while electron microscopes do not

D). allow you to view living cells, while electron microscopes do not