what are RBC cells , WBC cells and blood platelets ?
Answers
Red Blood Cells or Erythrocytes:
=> They contain a red pigment called haemoglobin, which transports oxygen to all cells of the body by combining with oxygen to form a compound called oxyhaemoglobin.
=> The mature erythrocytes do not have a nucleus.
White Blood Cells or Leukocytes:
=> They are larger than RBCs and do not have haemoglobin.
=> They fight against germs that enter the body. Thus, they protect the body from diseases.
Blood Platelets or Thrombocytes:
=> You must have noticed that when you get injured, bleeding stops after some time. This happens because of the activity of platelets. Platelets help in the clotting of blood during an injury.
=> The platelets are smaller than the RBCs.
Explanation:
RBC cells refers to Red Blood Cells which carry out oxygen from lungs to
different parts of our body.(haemoglobin) is present in RBC which gives it red colour.
WBCs refers to White Blood Cells which
is a part of immune system, it fight with
germs.These are lack of heamoglobin.
They are less in number than RBCs.
Platelets are different from RBCs and
WBCs, it helps in blood clotting in case
of cut.