MICROANATOMY

Detailed explanation-1: -Ultra-high resolution EM can magnify objects 2, 000, 000x their actual size. However, EMs can only be used to view dead cells, as the method for preparing specimens kills them.

Detailed explanation-2: -A scanning transmission electron microscope has achieved better than 50 pm resolution in annular dark-field imaging mode and magnifications of up to about 10, 000, 000× whereas most light microscopes are limited by diffraction to about 200 nm resolution and useful magnifications below 2000×.

Detailed explanation-3: -Conventional optical microscopes can magnify between 40 to 2000 times, but recently what are known as “super-resolution” light microscopes have been developed that can magnify living biological cells up to 20, 000 times or more.