microscopes

Question 1

compound microscopes

Answer 1

light-based, 2000x max, uses 2 lenses, can see living specimens

Question 2

transmission electron microscope

Answer 2

2d images of internal structures, only dead specimens

Question 3

scanning electron microscope

Answer 3

3d image of surface, 300,000x magnification, entire specimens

Question 4

how to get magnification

Answer 4

ocular lense x objective lense

Question 5

eyepiece/ocular lense

Answer 5

magnifies specimen image times 10

Question 6

body tube

Answer 6

holds objective lenses at the proper distance

Question 7

coarse adjustment knob

Answer 7

moves the stage up and down quickly for focusing image

Question 8

fine adjustment knob

Answer 8

smaller than coarse knob, slightly moves stage to sharpen image

Question 9

revolving nosepiece

Answer 9

holds objective lenses. can be turned to increase magnification

Question 10

objective lenses

Answer 10

increases magnification. low 4x, med 10x, high 40x

Question 11

arm

Answer 11

used to support microscope when carried, holds body tube and nose piece and objective lense

Question 12

stage/stage clips

Answer 12

supports microscope slide/specimen

Question 13

diaphragm

Answer 13

controls amount of light on slide/specimen

Question 14

light source

Answer 14

projects light upwards though diaphragm, the specimen and the lenses

Question 15

base

Answer 15

supports microscope