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Bio 1,2 > Microscopes and History > Flashcards

Microscopes and History Flashcards

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Biology 101 flashcards
1
Q

Compound light microscope

A

uses light and lenses
can’t see beyond 1000x
views living and nonliving specimens

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2
Q

electron microscope

A

uses focused beam of electrons through the specimen

can’t view living things

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3
Q

transmission electron microscope

A

best used to see inside cells

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4
Q

scanning electron microscope

A

best used to see surface of specimens

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5
Q

what you look into in microscope

A

ocular lense eyepiece

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6
Q

maintains the proper distance between nosepiece and eyepiece

A

body tube

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7
Q

contains the objective lenses

A

revolving nosepiece

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8
Q

magnifies objects 4x

A

low power objective lense

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9
Q

magnifies objects 10x

A

medium power objective lense

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10
Q

magnifies objects 100x

A

high power objective lense

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11
Q

hold the slide in place

A

stageclips

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12
Q

controls the amount of light passing through the slide

A

diaphragm

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13
Q

provides light

A

light source

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14
Q

allows user to see the specimen, magnifies 10x

A

eyepiece

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15
Q

connects the revolving nosepiece to the body of the microscope

A

arm

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16
Q

supports the slide

A

stage

17
Q

move the stage(or nosepiece) up and down

A

coarse adjustment knob

18
Q

focuses the view of the specimen

A

fine adjustment knob

19
Q

supports the microscope

A

base

20
Q

remember to NEVER:

A

use the coarse adjustment knob on medium or high power objective lenses.

21
Q

three parts of the cell theory

A

all organisms composed of one or more cells

the cell is the basic unit of structure and organization in organisms

22
Q

Zacharias Jansen

A

came up with the microscope in the 1600s

23
Q

Anton van Leeuwenhoek

A

created a paddle like microscope that worked really well

observed bacteria

24
Q

How did Leeuwenhoek discover bacteria?

A

looking at teeth scrapings on the microscope

25
Q

what did leeuwenhoek call bacteria

A

animalcules

26
Q

Who named “the cell”

A

Hooke because they looked like cells in a monastary

27
Q

Matthias Schleidan

A

realized all plants are composed of cells

28
Q

Theodore Schwann

A

realized all animals were made of cells

29
Q

Rudolph Virchow

A

showed cells did come from other cells, not just spontaneously being made

30
Q

Robert Brown

A

discovered and named the nucleus

Bio 1,2 (10 decks)

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