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Body Fluids and Circulations
The haemoglobin of human foetus
has a lower affinity for oxygen than that of the adult
its affinity for oxygen is the same as that of an adult
has only 2 protein subunits instead of 4
has a higher affinity for oxygen than that of an adult
D.
has a higher affinity for oxygen than that of an adult
Haemoglobin is the protein that makes red blood corpuscles red and binds easily and reversibly with oxygen. Normal values for haemoglobin are 14-20 g/100 mL of blood in infants, 13-18g/100 mL in adult male and 12-16 g/100 mL in adult females. Haemoglobin is made up of protein globin bound to the red haem pigment. The globin consists of four polypeptide chains-2 alpha and 2 betas. Foetal haemoglobin does not sickle even in those destined to have sickle cell anaemia, ie, haemoglobin of foetus has a higher affinity for oxygen than that an adult.
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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?
What does the QRS wave represent in an ECG?
Name a animal having open circulatory system.
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