Chapter 1.0 Flashcards

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1
Q

Who invented the compound microscope, and what were did it consist of ( magnification, parts)

A

The Janssen brothers
Hans and Zacherias

Composed of two convex lenses, started with a magnification of 20x.

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2
Q

The first individual to observe cellular composition.

A

Robert Hooke

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3
Q

The first individual to observe the movement of cells.

A

Anton Van Leeuwenhoek

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4
Q

Who aided in part of the improvement of the miscroscope?

A

Anton Van Leeuwenhoek.

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5
Q

List the magnifications if the low medium and high objective lenses.

A

4x, 10x, 40x.

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6
Q

Formula of calculation of magnification.

A

(Ocular lense)(objective lense)

10x)(4,10,40x

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7
Q

F.o.v.

A

Diameter of the slide, higher magnification, lower f.o.v.

Formula,
Fov1) (mag. 1) = (fov2)(mag. 2)

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8
Q

1000 micrometre= ?

A

1mm

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9
Q

Actual size calculation.

A

Fit number
* note they must be in the same units*

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10
Q

Scale calculation.

A

Actual size

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11
Q

The belief that living things came from non-living things is known as?

A

Spontaneous generation.

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12
Q

Who is the father if biology, who often used the scientific method to explain things around him.

A

Aristotle

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13
Q

Name those who tried to disprove spontaneous generation.

A
  • Francessco Redi

- John Needhaum :attempted to relate it to living things.

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14
Q

Who disproved spontaneous generation and when?

A

louis Pateur in the mid 1800s

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15
Q

What is the cell theory.

A
All living things made of cells.
Cells a functional//
- meet all cell needs
- take in nutrients
- gives out waste 
- use energy to do work 
- maintains certain temperature and chemical conditions.
All existing cells  came from pre existing cells through mitosis ( cell division)
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16
Q

Types of microscopes.

  • em
  • tem
  • sem
A

Electron microscope
Transmission electron microscope
Scanning electron microscope

17
Q

What three factors affect what is seen under a microscope?

A

Magnification
Contrast
Resolution

18
Q

When colours are used to increase contrast, showing specific parts of the cell. This is known as….

A

Staining

19
Q

Steps
Laser concentrates light onto a specimen
Reflection is passed through a detector and each image is a layer of a 3d object.
What is thus defined as… As well what lights can be used along with this.

A

Confocal technology

Brightfield
Uv
Visible.

20
Q

Magnifies 1500 000x
Scans through the specimen
Sees thin slices/ tiny

A

Tem

Transmission electron microscope

21
Q

Can magnify up to 300 000x
Sees surface of specimen
Not as clear as similar microscope

A

Scanning electron microscope

22
Q

Both analyze DNA and gene mapping,
Gfp
3d structure of molecules
Cell communication

A

Scanning tunnelling microscope

Atomic force microscope

23
Q

Using xrays that scatter to project an image onto a computer screen
Sometimes used to determine DNA

A

X ray crystallography

24
Q

GFP
Attach to cells to study parts
Aids in alzhelmers study and parkinsons disease research
Only visible under UV light

A

Green fluorescent protein technology