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NAT101 > Compound Microscope > Flashcards

Compound Microscope Flashcards

1
Q

an essential tool in the study of the fine structure of plants and animals

A

microscope

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2
Q

made up of a system of lenses that can invert images

A

compound microscope

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3
Q

3 major parts of the microscope

A
  1. Mechanical Parts
  2. Illuminating Parts
  3. Magnifying Parts
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4
Q

the tubular, upright portion attached at the top of the arm; this is where the ordinary eyepiece or ocular is inserted

A

Draw Tube

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5
Q

found immediately below the draw tube that serves as connection between the ocular inside the draw tube and the objectives found at the other end of the body tube

A

Body Tube

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6
Q

the carrier of optical parts of the microscope

A

Body Tube

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7
Q

located at the lower end of the body tube serving for attachment of objectives that facilitate the shift from one objective to another

A

Revolving Nosepiece

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8
Q

dark metallic disc located just above the revolving nosepiece used to prevent dust from entering the objectives

A

Dust Shield

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9
Q

the C-shaped pillar rising from the stage or base used for carrying the microscope

A

Arm or Handle

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10
Q

the flat platform attached to the arm where the glass slide containing the specimen is placed

A

Stage

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11
Q

found on stage used for securing the slide in position

A

Spring Clips

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12
Q

located immediately below the stage containing the diaphragm and the Abbe condenser

A

Sub-stage

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13
Q

the large wheel with milled edges used along with the Low Power Objective for locating the outline of the specimen

A

Coarse Adjustment Knob

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14
Q

the smaller wheel with milled edges used to see the finer detail of the object

A

Fine Adjustment Knob

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15
Q

rotation movement of Coarse Adjustment Knob

A

upward or downward

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16
Q

located between the pillar and the arm and enables one to tilt the upper part of the microscope to a desired position for convenience

A

Inclination Joint

17
Q

a very short connection between the base and the rest of the microscope

A

Pillar

18
Q

can be tilt to desired angle of position

A

Pillar

19
Q

the U-shaped or horse-shoe shape iron portion on which the microscope rests

A

Base

20
Q

It supports the entire apparatus.

A

Base

21
Q

major part controlling the light entering the microscope

A

The Illuminating Parts

22
Q

located below the stage used to catch the light and direct it to the object being studied

A

Mirror

23
Q

mirror used under natural light

A

flat or plane surface mirror

24
Q

mirror used under artificial light

A

concave mirror

25
Q

with a small lever at one side of the condenser which opens and closes a screen of metal plates

A

Iris Diaphragm

26
Q

used to regulate the amount of light entering the microscope

A

Iris Diaphragm

27
Q

used to concentrate or focus the light coming from the diaphragm to the object found on the stage

A

Abbe Condenser

28
Q

major part used for Enlargement of Objects

A

The Magnifying Parts

29
Q

contains lenses (eye lens and field lens)

A

Ocular or Eyepiece

30
Q

small tubes containing lenses screwed into the nosepiece which magnify the object being examined

A

Objectives

31
Q

the shortest tube stamped 10x affording the lowest ocular magnification

A

Low Power Objective (LPO)

32
Q

the longer tube marked either 40x (most used), 43x, sometimes 45x

A

High Power Objective (HPO)

33
Q

objective that have same length as the high-power objective but affording a much higher magnification being stamped 95x, 97x or 100x

A

Oil Immersion

34
Q

may be defined as the number of times an object is enlarged by the magnifying lens or the number of times a drawing is enlarged from the original size of the object

A

Magnification

35
Q

general formula of magnification

A

MAGNIFICATION = Magnifying power of objective X Magnifying power of eyepiece

NAT101 (10 decks)

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