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Science 10-1 Unit C1 Cell Theory > C1 Cell Theory and Technology > Flashcards

C1 Cell Theory and Technology Flashcards

(57 cards)

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1
Q

Q: Who invented the first compound microscope?

A
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2
Q

A: Hans & Zacharias Janssen in 1595 using two lenses (ocular + objective).

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3
Q

Q: What did Robert Hooke observe in cork?

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4
Q

A: Small chambers he called “cells” using a 3-lens microscope.

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5
Q

Q: What did Antoni van Leeuwenhoek discover?

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6
Q

A: Moving single cells like bacteria and protozoa

A

magnification up to 250X.

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7
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8
Q

Q: What is total magnification?

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9
Q

A: Eyepiece × Objective lens. (e.g.

A

10X × 40X = 400X)

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10
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11
Q

Q: What is the field of view in a microscope?

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12
Q

A: The circular area visible under the microscope lens.

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13
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14
Q

Q: Name three characteristics of living things.

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15
Q

A: Use energy

A

reproduce

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16
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17
Q

Q: What is spontaneous generation?

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18
Q

A: The outdated idea that life comes from non-living matter.

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19
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20
Q

Q: What experiment did Francesco Redi do?

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21
Q

A: Covered meat to show maggots don’t appear without flies—disproving spontaneous generation.

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22
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23
Q

Q: How did Louis Pasteur disprove spontaneous generation?

24
Q

A: Used an S-shaped flask to show microorganisms come from the air

Study These Flashcards
A

not the broth.

25
26
Q: What is the theory of biogenesis?
27
A: Living organisms come only from other living organisms.
28
29
Q: What did Robert Brown discover in cells?
30
A: The nucleus
an important cell structure.
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Q: What did Schleiden and Schwann conclude?
33
A: All plants and animals are made of cells.
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Q: What was Virchow’s addition to cell theory?
36
A: All cells come from pre-existing cells.
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38
Q: State the Modern Cell Theory (3 points).
39
A:
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All living things are made of one or more cells.
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Cells are the smallest unit of life.
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All cells come from pre-existing cells.
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47
Q: What does contrast do in microscopy?
48
A: Makes cell parts easier to see using light or stains.
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Q: What is resolution in microscopy?
51
A: Ability to keep a clear image while magnifying.
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Q: What does TEM show?
54
A: Internal cell structures.
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Q: What does SEM show?
57
A: 3D surface details of cells.

Science 10-1 Unit C1 Cell Theory (1 decks)

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