Exercise 1: Monocular Compound Microscope

Question 1

revolving structure at the lower end of the body which bears the lower lenses. This facilitates shifting of objectives.

Answer 1

Rotating nosepiece (revolving nosepiece)

Question 2

found in the draw tube for further magnification of the image

Answer 2

Ocular/ eyepiece

Question 3

Things seen in this way under the microscope are said to be observed by?

Answer 3

Transmitted light

Question 4

lower lens screwed to the rotating nosepiece, serves to form a bigger image of the object, within a body tube.

Answer 4

High power objective

Question 5

which the viewer looks at the object. Normally of 10 to 15 times magnifying power.

Answer 5

Eye piece or ocular

Question 6

found immediately beneath the stage; serves further to concentrate the light rays of the specimen.

Answer 6

Condenser

Question 7

Two sets of lenses

Answer 7

eye piece or ocular and objective lenses

Question 8

Found below the stage with concave and flat surfaces to gather and direct the light to illuminate the object.

Answer 8

Mirror

Question 9

these consists of certain precise parts chiefly of metal to support and adjust the optical parts.

Answer 9

Mechanical parts

Question 10

Keep the slide in place for clear focusing: prevent the slide from being dislodge.

Answer 10

Stage clips

Question 11

short supporting piece arising from the base where the arm is attached.

Answer 11

Pillar

Question 12

platform with central aperture for light to pass through and two stage clips to hold the slide being studied.

Answer 12

Stage

Question 13

a movable hinge between the pillar and arms and is used to tilt the upper parts whenever necessary.

Answer 13

Inclination joint

Question 14

geared to the body tube use to bring the object into focus; uppermost and larger knobs used to raise and lower optical system in preparation for focusing when using the low power objective.

Answer 14

Coarse adjustment screws or knobs

Question 15

smaller cylinder that is attached to the upper portion of the body tube which bears the ocular or eyepiece.

Answer 15

Draw tube

Question 16

It possible to observe object so small that they are invisible to our unaided eyes.

Answer 16

Microscope

Question 17

metallic structure above the nosepiece which protects the lower lenses.

Answer 17

Dust shield

Question 18

is a hollow cylinder attached to the arm:

Answer 18

Body tube

Question 19

lower smaller knob below the coarse adjustment screw used for slow or little movement of the body tube when focusing the high power objective and for more delicate focusing.

Answer 19

Fine adjustment screws

Question 20

The shortest of the three objectives; use for general viewing of the specimen studied.

Answer 20

Scanner

Question 21

mechanism attached to the stage for ease in moving the slide or moves the specimen by screw movement either forward, backward or sideward.

Answer 21

Mechanical stage

Question 22

heavy, Y shaped foot in which the microscope stands.

Answer 22

Base

Question 23

these consists principally of special types carefully ground and polished glasses aligned on an optical axis for the enlargement of the image of the object under study.

Answer 23

Optical parts

Question 24

A lense that nearer to the object

Answer 24

Objective lenses

Question 25

Found above the mirror consisting of several metal blades; regulate or control the amount of light reaching the object

Answer 25

Iris diaphragm

Question 26

is connected to the objective lenses through a circular structure known as nose piece

Answer 26

Eye piece tube

Question 27

shorter lens screwed to the rotating nosepiece serves to form the image of the object within the body tube.

Answer 27

Low power objective

Question 28

is a microscope that uses a single eyed tube for viewing objects.

Answer 28

Monocular compound microscope

Question 29

The shortest of the three objectives; use for general viewing of the specimen studied.

Answer 29

Scanner

Question 30

most commonly used in the Biology laboratory

Answer 30

Monocular compound microscope

Question 31

Short curved handle that connects the base and the body tube and is used in carrying the microscope.

Answer 31

Arm