1. What is not a way that co2 is transported in the blood?
- Dissolved in plasma 5%
- Bound to the membrane of leucocytes
- Carbon dioxide can also bind to the amino groups on plasma proteins
- Binding with heamoglobin to make carbaminohaemoglobin 10%
- Transported as hydrogen carbonate ions HCO3- (disolved in plasma) 85%
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2. Which of these statements are not correct?
- The left ventricle wall is the thickest because it has to pump blood to the rest of the body
- The right ventricle wall is the the thickest because it has to pump blood to the lungs
- Atria walls are the thinnest because most of the blood moves down by gravity
- The septum separates the right side of the heart from the left
3. Which of these is not used in the electrical conduction of the heart.
- Atrial ventricular node
- Atrio-ventricular valves
- Sino-Atrial node
- Purkinje Fibres
4. What is not a reason that transport systems are needed?
- Activity- Very active animals need more nutrients and oxygen and at a higher rate
- Breadth- Animals may have a large surface area so need more oxygen to get trough as there is too much space to fill
- Size- Too big and all the nutrients would be used by the cells in the outer layers
- SA:V - Important cells deep in the body cannot get to the oxygen as the surface area is too small
5. What is not found in the left side of the heart?
- Pulmonary Artery
- Pulmonary Vein
- Left Atrium