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Yr 8 > Topic 2 Cells > Flashcards

Topic 2 Cells Flashcards

1
Q

What are the seven life processes

A

Movement
Reproduction
Sensitivity
Growth
Respiration
Excretion
Nutrition
(MRS GREN)

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2
Q

What is meant by sensitivity

A

Responding to surroundings

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3
Q

What is meant by nutrition

A

the food you eat

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4
Q

What is meant by excretion

A

Removal of waste

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5
Q

What is meant by reproduction

A

Producing offspring

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6
Q

What is meant by respiration

A

Release of energy from the food eaten

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7
Q

What is meant by growth

A

Increase in size

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8
Q

What is meant by movement

A

Changing position

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9
Q

What are all living things made up of

A

Cells

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10
Q

What equipment do you use to look at cells

A

microscope

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11
Q

What part of the microscope changes the magnification of the image

A

objective lens - x4, x40 or x100

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12
Q

What part of the microscope do you set your prepared slide on

A

The stage

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13
Q

How do you see an image on the microscope

A

Look down the eyepiece lens and adjust the stage by using the coarse and fine focusing knobs

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14
Q

What are the 3 parts of an animal cell

A

Cell membrane
cytoplasm
nucleus

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15
Q

What is the function (job) of the nucleus

A

COntrols cell activities

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16
Q

What is the function (job) of the cell membrane

A

Lets materials enter and leave the cell

17
Q

What happens in the cytoplasm

A

All chemical reactions of the cell

18
Q

In addition to the cell membrane, nucleus and cytoplasm - what other parts are found in a plant cell ONLY

A

Cell wall
Chloroplasts
Vacuole

19
Q

What is the function of the cell wall

A

Support

20
Q

What do chloroplasts do

A

Trap light energy and make food in photosynthesis

21
Q

What is found in the vacuole

A

Cell sap

22
Q

What is meant by specialised cells

A

Cells that have a shape that allows them to do a particular job e.g. nerve cells are very long to carry impulses quickly round body
Red blood cells have no nucleus so they can carry more oxygen
Plant have root hair cells that have long extensions so they can get more water

23
Q

What is a tissue

A

A group of the SAME cells that work together to do a particular job

24
Q

What is an organ

A

A group of the different tissues that work together to do a particular job

25
Q

Give 2 examples of organs found in an animal

A

Heart
lungs
liver
skin

26
Q

Give 2 examples of organs found in plants

A

leaf
root

27
Q

What is an organ system

A

A group of the different organs that work together to do a particular job

28
Q

What organ system is needed for digesting food - name some of the organs of that system

A

Digestive system - made up of stomach, small and large intestine

29
Q

What organ system is needed for carry food and oxygen around the body - name some of the organs of that system-

A

CIrculatory system
Heart
blood vessels
blood

30
Q
A

Yr 8 (6 decks)

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