Microscopes - Exam 2

Question 1

light microscope

Answer 1

operate with visible light, use 2 magnifying lenses to achieve high magnification and clarity

Question 2

compound microscope

Answer 2

magnify in stages using several lenses and can resolve structures that are separated by at least 200 nm

Question 3

electron microscope

Answer 3

has 1000x the resolving power of a light microscope

Question 4

transmission electron miscroscope

Answer 4

electrons used to visualize through material are capable of resolving objects only 0.2 nm apart (2x the diameter of H)

Question 5

scanning electron microscope

Answer 5

beams electrons onto the surface of the specimen, electrons reflected back and electrons that it emits are amplified and transmitted onto a screen

Question 6

immunohistochemistry

Answer 6

use of antibodies generated in animals that can be chemically bonded to the enzymes, stains, or fluorescent molecules after being purified