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Body Fluids and Circulations
Oxygen dissociation curve of haemoglobin is
sigmoid
hyperbolic
linear
hypobolic
A.
sigmoid
Oxygen-haemoglobin dissociation curve gives the relationship between the saturation of haemoglobin and oxygen tension.
The curve obtained by plotting the per cent saturation of Hb against time is sigmoid, at 38oC and pH 7.4. Dissociation of oxyhaemoglobin can be promoted by rising in the body temperature and low pH (high CO2)
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Sino-auricular node is called pacemaker of our heart. Why?
Write the differences between
(d) P wave and T wave
Write the differences between
Systole and diastole
Write the differences between
(a) Blood and lymph
Write the differences between
Open and closed circulatory system
What is the differences between lymph and Blood?
How many times does a heart beat per minute?
What is the function of bicuspid valves?
What is the function of tricuspid valves?
Why circulatory system is absent in sponges?
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