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Biology > Cells And Microscope > Flashcards

Cells And Microscope Flashcards

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1
Q

Cell membrane

A

Allows substances to pass in and out of the cell

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2
Q

Cytoplasm

A

Watery fluid that gives support to the cell

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3
Q

Nucleus

A

Controls the cell’s activities

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4
Q

Vaculole

A

(Larger and permanent in plants) storage of food,water and wastes

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5
Q

Cell wall

A

(Only in plant cells) gives strenght to the cell

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6
Q

Choroplasts

A

(Only in plants cell) contains chlorophyll to helpmake food

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7
Q

Base

A

Keeps the microscope stable

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8
Q

Stage and stage clips

A

Holds the slide in place

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9
Q

Light source

A

A built in light bulb or mirror that lights up the speciman

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10
Q

Diaphragm

A

Controls the amount of light passing through the speciman

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11
Q

Objective lens

A

Magnifies the speciman by different factors (x4 x10 x40

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12
Q

Eyepice lens

A

Magnifies the speciman,usually by a factor of 10 (x10)

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13
Q

Coarse focus wheel

A

Brings the image into a rough focus

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14
Q

Fin focus wheel

A

Brings the image into sharp focus

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15
Q

Electron microscope

A

Used to study things in more detail a beam of electrons is passed through a specimen

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16
Q

Micrograph

A

An image formed when using an electron microscope

17
Q

Mitochondria and ribosomes

A

Can be seen with an electron but cannot be seen with a light microscope

18
Q

Organelle

A

Structure in a cell that carries out a particular role

19
Q

Cell

A

Made up of organelles, different cells do different jobs

20
Q

Tissue

A

Groups of cells that work together e.g. blood is made of red and white blood cells, plasma and platelets

21
Q

Organ

A

Group of tissues that work together

22
Q

System

A

Group of organs that work together

23
Q

Organism

A

An individual that has many systems that work together

Biology (3 decks)

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