Question

explain red blood cells in four points​

Answer 1

Answer:

• It help to maintain Body temperature
• It help to carry oxygen to various parts of body
• It contains hemoglobin which os red in colour

Answer 2

• red blood cells help in transportation of oxygen from lungs to various body parts and carbon dioxide from body parts back to lungs.
• RBCs have an enzyme called carbonic anhydrase which helps in carbonic acid from water and carbon dioxide which further dissociates into H+ and HCO3- ion.
• it's membrane is called Donnan's membrane which is not permiable for Na+ & K+ ion but is permiable for HCO3- & Cl- ion.
• a process called chloride shift occurs that is shifting of chloride ions from plasma to rbc ( occurs near tissues ). Opposite to this, a process reverse chloride shift occurs in lungs.

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