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KS3 Science > Cells > Flashcards

Cells Flashcards

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Biology 101 flashcards
1
Q

What type of cells are animal and plant cells?

A

Eukaryotic cells

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2
Q

Mitochondria function

A

releases energy from aerobic respiration

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3
Q

What are prokaryotic cells?

A

bacteria cells

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4
Q

What are in bacteria cells?

A

Plasmid (contains DNA) and DNA loop

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5
Q

What are the two different microscopes?

A

Light microscope and electron microsope

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6
Q

Which microscope is better?

A

Electron microscope

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7
Q

What are the specialised cells?

A

Root hair cell, sperm cell, blood cell and nerve cell

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8
Q

What is diffusion?

A

Spreading out of particles from a high concerntration to a low concerntration

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9
Q

What is osmosis?

A

The net movement of water particles from an area of high concerntration to an area of low concerntration.

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10
Q

What is active transport?

A

The net movement of particles from a high concerntration to a low concerntration.

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11
Q

How is a sperm cell adapted to carry out it’s function?

A

Has a tail so it can swim to the egg

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12
Q

What is the formula for magnification?

A

length of the Image divided by the Actual Length.

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13
Q

What is the function of plasmids?

A

Carry genes

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14
Q

Examples of diffusion

A

water, oxygen and carbon dioxide molecules can pass directly through the cell membrane

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15
Q

Example of Active Transport

A

Moving materials across the cell membrane

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16
Q

Whic cell is more complex?

A

Eukartyotes

17
Q

Where do the chemical reactions happen?

A

The cytoplasm

18
Q

What are microscopes for?

A

To see things we cant with the naked eye

19
Q

How many ums in a mm?

A

1000

20
Q

What is differentation?

A

When a cell changes to become specialised for it’s job

21
Q

What are nerve cells specialised for?

A

Carry electric signals from one part of the body to the other.

22
Q

What are muscle cells specialised for?

A

It is to contract quickly

23
Q

What are root hair cells specialised for?

A

Absorbing minerals

24
Q

What are phloem and xlyem specialised for?

A

Transports food and water around plants.

25
Q

Which does not affect the rate of diffusion across membranes?

A

Colour of molecule

26
Q

What is an independent variable?

A

A variable that is controlled and changed in an experiment

27
Q

What is required in Active Transport?

A

Energy

KS3 Science (5 decks)

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