Cells/Tissues/Organs

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Function of the heart

  • Deoxygenated blood comes through the ____ ____ into the right atrium.
  • Then goes into the ______ _____ into the right ventricle, which contracts to _____ blood out the __________ _____. -This leads to the lungs where it becomes ___________. 
  • Oxygenated blood comes through the __________ ____ into the left atrium. 
  • Then goes into the ________ _____ into the left ventricle.
  • The left ventricle pumps blood out the ______ to deliver blood ___ ____ ___ _____.

Why is the left side stronger?

The right side pumping blood at low pressure reduces damage to?

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Arteries/Veins/Capillaries

Ateries:           Travel ______ ____ the heart.

Have a ______ muscle wall as blood is under ____ blood pressure. 

Veins:              Blood is _______ to the heart. 

A ________ muscle wall, with a large ____ in the middle (This is called the _____). They have ______ to prevent _____ flow of blood. 

Capillaries:      _______ blood and cells. 

Are ___ cell thick, to create a ________ fusion distance to create a ______ exchange. Blood is pushed out the capillary _____ then the ________ is taken from the blood. It absorbs ______ and is reabsorbed into the capillary.

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Blood

Red Blood Cells:

  • Contain _________ to carry Oxygen. 
  • They are _____ to be able to fit through the ________.
  • Take the shape of a _________ ____ to increase the surface area.
  • When blood gets to the lungs, Oxygen binds to Haemoglobin to form: _____________.
  • Once it reaches the necessary area, Oxygen is released to be used in ____________.

White Blood Cells:

  • Engluf and _____ bacteria. 
  • They also produce _________.

Platelets: 

The job of the platelets is to ____ blood if you are cut. 

Plasma: 

It is ____ coloured, containing: _______, digested food, cholestrol, ___-____ and waste products.

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Mitosis

  • DNA is split into ________ bases so it is _______ stranded.
  • ____________ bases pair up leading to identical copies.
  • Chromosomes line on the ________ on ________ which are pulled to the poles.
  • The cells ______ into two identical cells.

This takes place in body cells when? 

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Meiosis

  • Beginning part it the same as Mitosis 
  • Pulled to the poles and divides 
  • The cells divide again to create ______.
  • This happens to form ______ (also known as sex cells).
  • Meiosis results in 4 genetically ________ haploids.

The Diploid and Haploid are ________ on the organism. 

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