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Animal Cells
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Animal Cells

lesson introduction

Animal Cells

We will look in detail the nature and components of animal cells.

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This is a simplified model of an animal cell

This lesson will give a super speedy introduction to 5 components you find in animal cells.

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The cell membrane goes all around the outside of the cell and keeps the cell together. Which letter points to the cell membrane?

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3

Cells have only one nucleus. It sits at the centre of the cell. Which letter points to the nucleus?

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4

The cell is filled out by a gel-like fluid, called the cytoplasm. Which letter points to the cytoplasm?

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Finally, animal cells also contain something called ribosomes and mitochondria

This lesson gives a short introduction to what these 5 different components do.

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The cell membrane makes sure that the cell is one entity

It makes sure the cytoplasm of different cells don't just spill out into each other.

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But the cell membrane also acts as a kind of "border control". What do you think that means?

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The nucleus at the centre of the cell stores the cell's DNA. What is DNA?

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So the nucleus stores the cell's genetic material

The genetic material (DNA) holds the instructions for how the cell should work, so it is extremely important that it is kept safe!

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Sometimes things have to move inside the cell, from the nucleus to the ribosomes, for example. To do that they have to move through the gel-like fluid inside the cell which is called the ______________.

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The cell's cytoplasm is a gel-like fluid that allows transport between for example the nucleus and ribosomes

If the cytoplasm wasn't there, nothing would be able to move around inside the cell.

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Cells produce proteins for various different purposes in the body

For example as enzymes or hormones or antibodies.

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The letter A points to one of these protein factories. What was the name of them?

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Finally, animal cells also need to generate energy. Which component must do that?

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Pick all the 5 components of animal cells that this lesson has introduced.

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You can select multiple answers

Where is the cell's genetic material (DNA) stored?

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What do the cell's mitochondria do?

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What does the cell membrane do?

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Where does the cell produce proteins?

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What is the name of the gel-like fluid that allows transport inside the cell?

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To summarise!

This lesson has introduced 5 components of animal cells.

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The cell membrane...

regulates transport in and out of the cell and holds the cell's cytoplasm together.

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The cytoplasm...

is a gel-like fluid that allows transport inside the cell, for example between the nucleus and the ribosomes.

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4

The nucleus...

stores the cell's genetic material.

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5

The ribosomes...

are the cell's protein factories.

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The mitochondria...

generate energy for the cell.

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7

This was only a super speedy intro to these different components of an animal cell

Much more detail on cell membranes, cytoplasm, nuclei, ribosomes and mitochondria in later lessons.

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