Question

What are features of Red Blood Cells??

Answer 1

Red Blood Cells:

• These are the most abundant blood cells.

• They are bi-concave in shape.

• They don't have nucleus.

• RBCs contains haemoglobin.

• In mature RBC endoplasmic reticulum is absent.

• They have a spongy endoskeleton called stromatin.

• Plasma membrane of RBC is called Donnan's membrane.

• The mature RBCs also lack mitochondria, Golgi complex.

• Single RBC is pale yellow in colour.

• Group of RBCs has a reddish appearance.

• In each RBC 26.5 crores molecules of haemoglobin is present.

• RBCs play important role in transport of respiratory gases.

• Increase in RBC count in blood is called Polycythemia.

• Decrease in RBC count in blood is called Anaemia.

Answer 2

ANSWER:-

RED BLOOD CELL are cells of blood that contain red pigment called haemoglobin and help in transportation of gases like oxygen to all cells of the body by itself combining with oxygen to form a compound called oxyhaemoglobin. The mature erythrocytes do not have a nucleus.