Cells & Cell organisation Flashcards

1
Q

what is another word for living things?

A

Organisms

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2
Q

What helps to see a Cell?

A

A Microscope and it also helps if you stain it.

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3
Q

What is a nucleus?

A

A nucleus controls what the cell does

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4
Q

what is the cytoplasm?

A

the cytoplasm is a jelly like substance where chemical reactions take place

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5
Q

What is the cell membrane?

A

Cell membrane is the outer layer which controls what goies in and out of the cell.

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6
Q

What is Mitochondria?

A

Mitochondria ia a tiny structure that releases energy in to the cell.

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7
Q

what is cell wall?

A

A Cell Wall is only found in plantsand they offer support and protection.it is made of cellulose.

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8
Q

What is Vacuole?

A

Vacuole is a Structure that is in the middle of a plant cell.It is filled with cell sap which is a weak solution of sugar and salt.

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9
Q

what is Chloroplast?

A

Chloroplasts are only found in a plant cell because they contain chlorophyll which is used for photosynthesis.

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10
Q

what does unicellular means?

A

Unicellular is when a living thing is made of only one cell.

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11
Q

what ate two examples of Unicellular plants?

A

Euglena and Amoeba

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12
Q

what is a Flagellum?

A

It is a tail like structure that helps organisms to swim.

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13
Q

what is a contractile Vacuole?

A

A contractile vacuole is used to collect any excess water inside the cell and squeeze it out the cell membrane.

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14
Q

what is a tissue made up of?

A

A group of similar cells.

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15
Q

what is an organ made up of?

A

A group of different tissues.

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16
Q

what makes an organ system?

A

A group of organs.

17
Q

what makes a multi cellular organism?

A

Several organ systems.

18
Q

what two things do cells need to survive?

A

Glucose and Oxygen.

19
Q

what do cells need to get rid of?

A

Carbon dioxide.

20
Q

what is the process called when materials move IN or OUT of cells?

A

Diffusion.

21
Q

what exactly is Diffusion?

A

It’s where a substance moves from a area of high concentration to an area of low concentration.