AP BIOLOGY

Detailed explanation-1: -The electrons move very fast, and when they hit the sample they bounce off its outside surface. The bounced-back electrons are detected by a screen, which then makes an image we can see on a computer. An SEM can magnify a sample by about one million times (1, 000, 000x) at the most.

Detailed explanation-2: -Invented in the 1930s, typical electron microscopes are capable of peering into a panoply of biological and inorganic specimens such as microorganisms, cells, metals and crystal structures, with magnifications of up to 10, 000, 000x.

Detailed explanation-3: -With electron microscopy (EM), it is possible to magnify a structure 100, 000 times. Two kinds of electron microscopic technologies have been developed: transmission electron microscopy (TEM) and scanning electron microscopy (SEM).

Detailed explanation-4: -An electron microscope that provides high magnification (10, 000 to 100, 000x) of ultra-thin sections of the specimen. Electrons pass through the specimen and are scattered.

Detailed explanation-5: -The two main types of electron microscope are the transmission electron microscope and the scanning electron microscope. The former can produce magnified images up to 50million times the objects true size, however, it cannot see in 3D and can only be used on extremely thin specimen slices.