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Contents
What is Blood?
Plasma and cells in suspension
Plasma functions
Blood cells
Red blood cells
White blood cells
Summary quiz
* of 50 © Boardworks Ltd 2004…read more

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Plasma and cells in suspension
If blood is separated it no longer looks like the red liquid
that we recognise.
centrifuge
55%
45%
The blood sample separates into two parts.
The top half is a straw coloured liquid called plasma.
The bottom half is a dark collection of blood cells.
* of 50 © Boardworks Ltd 2004…read more

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How a suspension works
As blood is 55% plasma and only 45% cells, the cells are
actually suspended within the plasma, a little like people
would be suspended within a swimming pool.
* of 50 © Boardworks Ltd 2004…read more

Slide 5

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Contents
What is Blood?
Plasma and cells in suspension
Plasma functions
Blood cells
Red blood cells
White blood cells
Summary quiz
* of 50 © Boardworks Ltd 2004…read more

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First function of plasma
The plasma actually surrounds the cells and carries them
along as it flows through the blood vessels.
This is the first function of plasma.
Blood flows around the body, transporting substances
from one place to another.
* of 50 © Boardworks Ltd 2004…read more

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