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Biology > Cell Membranes > Flashcards

Cell Membranes Flashcards

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 activities.

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4
Q

Vacuole

A

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

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5
Q

Cell wall

A

(Only in plant cell) gives strength to the cell.

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6
Q

Chloroplasts

A

(Only in plants cell) contains chlorophyll to help make food.

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7
Q

Base

A

Keeps the microscope stable.

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8
Q

Stage and stage clips

A

Hold the slide in place

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9
Q

Light source

A

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

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10
Q

Diaphgram

A

Controls the amount of light passing through the specimen

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11
Q

Objective lens

A

Magnifies the specimen by different factors (x4 x10 x40)

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12
Q

Eyepiece lens

A

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

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13
Q

Coarse focus wheel

A

Rings the image into rough focus

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14
Q

Fine 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 and electron microscope, but cannot be seen with light microscope.

18
Q

Organelle

A

Structure in a cell that carries out particular role

19
Q

Cell

A

Made up of organelles, different cell 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 tissues that work together

23
Q

Organism

A

An individual that has many systems that work together

Biology (3 decks)

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