GENBIO 1 parts of the microscope

Question 1

Eyepiece or Ocular

Answer 1

lens that is planted at the top of the body tube; helps with observing magnified objects

Question 2

magnification power

Answer 2

certain marking on the rim of the eyepiece such as 5x, 10x, 15x

Question 3

Eyepiece Tube

Answer 3

holds the eyepiece in place above the objective lens

Question 4

Nosepiece

Answer 4

circular and the rotating metal part connected to the body tube’s lower end; has three holes wherein the objective lenses are embedded.

Question 5

Objective Lenses

Answer 5

used to capture light emitted or reflected by the specimen.

Question 6

4 objective lenses

Answer 6

scanning (4x); low (10x); high (40x); oil immersion (100x)

Question 7

Course Adjustment Knob

Answer 7

a large knob that is used for moving the body tube down and up for bringing the object to be examined under the exact focus

Question 8

Fine Adjustment Knob

Answer 8

it is the smaller knob used for sharp, fine, and accurate focusing of the object

Question 9

Stage

Answer 9

the flat and rectangular plate connected to the arm’s lower end; where the specimen is placed for studying and examining its features; has a hole at the center through which light passes.

Question 10

Stage Clip

Answer 10

the upper part of the stage is connected to two clips

Question 11

Aperture

Answer 11

the hole in the stage through which the base light reaches the stage

Question 12

Iris Diaphragm

Answer 12

controls the amount of light reaching the specimen; located above the condenser and below the stage

Question 13

Condenser

Answer 13

used to collect and focus the light from the illuminator onto the specimen; located under the stage often in conjunction with an iris diaphragm

Question 14

Base

Answer 14

a structure supporting the entire weight of the compound microscope

Question 15

Arm

Answer 15

a strong and curved structure that handles the entire microscope