L1: Microscope ( GN2 )

Question 1

What is light source

Answer 1

Gives off light to focus on specimen

Question 2

What is Diaphragm

Answer 2

Adjusts amount of light from source

Question 3

What is stage

Answer 3

specimen is placed on stage

Question 4

What is Objective lenses

Answer 4

magnification lenses

collect light and form the first magnified, real image

Question 5

What is eyepiece (ocular lenses)

Answer 5

lenses you look through (10x)

Question 6

What is revolving nosepiece

Answer 6

Allows objective lenses to be rotated

Question 7

What is coarse focus knob

Answer 7

Raise vertical distance largely

rough focusing

Question 8

What is fine focus knob

Answer 8

Raise vertical distance small

a smaller knob used for making precise, small adjustments to bring a specimen into sharp, clear focus.

Question 9

What is stage knobs

Answer 9

Horizontal slider

controls on a microscope used to move the specimen slide on the stage

Question 10

What is arm and base

Answer 10

Use to pick up

Question 11

What is magnification

Answer 11

Making an image appear larger

Question 12

What is Resolution

Answer 12

Ability to distinguish between two objects.

Important cuz otherwise 2 objects could look like 1 object

Question 13

A light microscope uses _____ in order to see an image

Answer 13

LIGHT

Brightfield microscopes produce a darker image on a light background

Darkfield microscopes has a piece that blocks the light source called a light stop

Question 14

Electron microscopes use _________ ______ to visualize images

Answer 14

ELECTRON BEAMS

Transmission Electron microscopes (TEMs) tend to be ideal for visualizing structures internal a specimen

Scanning Electron Microscopes (SEMs) tend to be ideal for visualizing the surface of a specimen

Question 15

NEVER use the ______ focus knob under high power as this can break the slide.

Answer 15

COARSE

Question 16

What types of organisms are best viewed under a microscope and why?

Answer 16

i dont remember