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1.1.1 Blood

(a) Blood Samples
Sterile equipment and disposable gloves are used. Skin is swabbed with alcohol. Tourniquet is
put on upper arm to make the veins stand out more. The needle is inserted into a vein and
blood is slowly drawn. Place a swab over wound as soon as…

Page 2

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Nucleus controls cell functions.
Nucleolus is a concentrated part of the nucleus.


(g) Magnification
Magnification = size of structure in picture
real size of the structure


(h) Fluid Mosaic Model




(i) Membranes
The cell surface membrane separates the cell from its environment. Membranes are also found
inside the cell in…

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