Microscopes

Question 1

Cell Theory

Answer 1

All living things are made up of one or more cells; cells are the smallest functional unit of life, all cells come from pre-existing cells

Question 2

Leeuwenhoek’s microscope

Answer 2

Simple microscope - one lens

Question 3

Robert Hook

Answer 3

Built Compound Microscope - two lenses, one magnifies, other enlarges- max magnification 1000x

Coined term cell

Question 4

Electron Microscope

Answer 4

Highest magnification
Beam of electrons passes through object
Can magnify bio and non-bio objects

Question 5

Spontaneous generation

Answer 5

The idea that non-living matter can generate life

Question 6

Eyepiece

Answer 6

Tube you look through in microscope

Question 7

Ocular lens

Answer 7

First lens in the eyepiece - 10x magnification

Question 8

Coarse adjustment knob

Answer 8

Adjusts stage by larger increments - only used for low power

Question 9

Fine adjustment knob

Answer 9

Adjusts Stage in smaller increments, used for hi or medium power

Question 10

Revolving nosepiece

Answer 10

Switches lens in use

Question 11

Objective lenses

Answer 11

Used for magnification
Low - 4x
Med - 10x
Hi - 40x

Question 12

Stage

Answer 12

Where specimen is held

Question 13

Stage clips

Answer 13

Hold slide in place

Question 14

Diaphragm

Answer 14

Adjusts amount of light passing through

Question 15

Lamp

Answer 15

Projects light to make specimen visible

Question 16

Arm

Answer 16

Where you carry microscope

Question 17

Difference between electron and light microscopes

Answer 17

Electron - uses concentrated beam off electrons

Light - uses regular light bulbs