Microscopy

Question 1

A laboratory instrument used to examine objects that are too small to be seen by the naked eye

Answer 1

Microscope

Question 1

Focuses light onto specimen using mirror or artificial light

Answer 1

Light Microscope

Question 2

Example of light microscope that is used to view 3D objects and observing the surface of the specimen

Answer 2

Dissecting Microscope

Question 3

Maximum Magnification of Dissecting Microscope

Answer 3

70x

Question 4

Example of light microscope meant for looking through the specimen

Answer 4

Compound Microscope

Question 5

Maximum Magnification of Compound Microscope

Answer 5

400x to 10000x

Question 6

Uses beams of electrons to create an image

Answer 6

Electron Microscope

Question 7

Have a much smaller wavelength than visible light that makes them produce higher resolution images

Answer 7

Electrons

Question 8

Example of electron microscope designed for directly studying the surfaces of solid objects

Answer 8

Scanning Electron Microscope:

Question 9

Example of electron microscope used to visualize the smallest structures in matter like cells in plants

Answer 9

Transmission Electron Microscope

Question 10

• Usually horse-shoe shaped
• Supports the entire microscope
• Provided with contact pads on the underside to give stable support on surfaces, balance, and stability when used in inclined position

Answer 10

Base

Question 11

The slightly elevated part that connects base to the arm

Answer 11

Pillar

Question 12

The curved part where one holds in carrying the microscope

Answer 12

Arm

Question 13

A movable hinge that is used in tilting or inclining the microscope in a desired position

Answer 13

Inclination Joint

Question 14

A cylindrical hollow tube attached to the arm and serves as a passageway of light from the primary and secondary magnifiers

Answer 14

Body Tube

Question 15

A smaller cylinder at the upper part of the body tube that holds the eyepiece

Answer 15

Draw Tube

Question 16

A rotating head attached to the base of the body tube, which carries and facilitates the shifting of the objectives

Answer 16

Revolving Nosepiece

Question 17

A fixed circular disc above the nosepiece that protects the objective lens from dust

Answer 17

Dust Shield

Question 18

A square or rectangular plate with a flat surface on which the specimen rest

Answer 18

Stage

Question 19

A structure found below the stage that holds the condenser and iris diaphragm

Answer 19

Sub-stage

Question 20

A larger pair of knobs used when focusing the specimen with low power objective and lowering the body tube

Answer 20

Coarse Adjustment Knob

Question 21

A smaller pair of knobs used for final focusing of specimen with either low power or high power objectives

Answer 21

Fine Adjustment Knob

Question 22

It is an optical unit that is usually in the form of a detachable cylinder provided with lenses found above the draw tube

Answer 22

Eyepiece or Ocular

Question 23

It produces the magnified image of the object that shows all the detailed structure and general appearance

Answer 23

Objectives

Question 24

The shortest cylinder with large lens opening and has lower magnification. Used to obtain a large field of magnification, thus, observe the general view of the specimen

Answer 24

Low Power Objective (LPO)

Question 25

A longer cylinder with smaller lens opening than LPO. Used to obtain the detailed parts of the specimen with higher magnification

Answer 25

High Power Objective (HPO)

Question 26

The longest cylinder with a small opening. Used to observe fine details of specific parts with a very high magnification

Answer 26

Oil Immersion Objective

Question 27

Usually with a double-sided face with concave and plain surface; used when the light source is at low and very bright intensity, respectively

Answer 27

Mirror

Question 28

A simple optical unit that fills the field of view with uniform illumination and supplying the objective with a cone of light at the right size to produce maximum result

Answer 28

Condenser

Question 29

* Attached at the base of the sub-stage and provided with a lever or projecting handle * Can be manipulated to regulate the amount of light passing through the lens

Answer 29

Iris Diaphragm