Question | Answer |
First compound microscope was made in.... | 1590 |
1655 ...... used a compound microscope to observe pores in cork; he called them "Cells" | Robert Hooke |
........was the first person to see single-celled organisms in pond water | Antoine Van Leeuwenhoek |
Micro means.... | Very small |
Scope means..... | To look at |
Increase of an objects apparent size | Maginification |
Power to show details clearly | Resolution |
A sample that is being examined | Speicmen |
1st type of microscope; most widely used | Compound microscope |
Used to observe very small objects such as viurses, DNA, and parts of cells | Electron Microscope |
Can magnify up to 100,000x | Scanning electron microscope (SEM) |
The lens you look through that magnifies the specimen | Eyepiece |
The hollow tube through which light passes; It holds the lenses apart | Body tube |
Supports the body tube; used to carry the microscope | Arm |
Holds the objective lens | Revolving nosepiece |
Holds down the slide on the stage | Stage clips |
x4 lens has low/small power; x10 lens had medium/middle power; x40 lens had high/large power | Objective lens |
Place where the object/specimen you are looking at is placed for viewing | Stage |
Raises or lowers the body tube to focus;never use this with x40 lens | Coarse adjustment |
Changes the amount of light reaching the objective lens | Diaphragm |