science test 12/21/21 Flashcards

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1
Q

Hooke

A

The first scientist to observe cells and used the compound microscope

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2
Q

Leeuwnhook

A

discovery of bacteria in ponds and used the simple microscope

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3
Q

schleiden

A

concluded that all plants are made up of cells

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4
Q

virchow

A

proposed that all cells come from other cells

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5
Q

Schwann

A

concluded that all animals are made up of cells

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6
Q

an instrument that makes small objects look larger

A

microscope

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7
Q

uses more than one lense

A

compound microscope

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8
Q

a widely accepted explanation of the relationship between cells and living things

A

cell theory

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9
Q

to enlarge in fact or appearance

A

magnification

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10
Q

curved outwards

A

convex

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11
Q

T/F Schwann worked alone to develop the cell theory

A

False

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12
Q

T/F Organisms who have cells lack a nucleus are called prokaryotes

A

True

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13
Q

T/F The cell theory is only true for living things that are small

A

False

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14
Q

T/F Magnification is the ability to make things look larger than they are

A

True

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15
Q

T/F Chromatin floats in the nucleus which contains genetic material or instructions for the cells functions

A

True

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16
Q

A light microscope can magnify objects up to

____ times their original size.

A

1,000

17
Q

A ______ is an instrument that makes small objects appear larger

A

Microscope

18
Q

A ______ is a rigid layer of nonliving material that surrounds the plant cell.

A

cell wall

19
Q

______ is the microscope that has better resolution

A

electron

20
Q

The lenses in a light microscope magnifies an object by _____ the light that passes through it.

A

bending

21
Q

Name the three parts of the cell theory in order

A

All living things are composed of cells, cells are the basic units of structure and function in living things, all cells are produced from other cells

22
Q

Describe the difference between a light microscope and an electron microscope

A

An Electron microscopes uses a beam of light and light microscopes have a mirror that focuses light through the specimen.

23
Q

How do the cells of bacteria differ from those of other organisms

A

Bacteria cells lack a nucleus. All of the other organisms contain a nucleus.

24
Q

Compare and contrast magnification and resolution

A

Both magnification and resolution help you see things better but magnification makes it larger whereas resolution makes it clearer.