Tell the functions of WBC, RBC, …

RBCs are the biconcave cells and without nucleus in humans; also known as erythrocytes. RBCs contain the iron-rich protein called haemoglobin;  give blood its red colour. RBCs are the most copious blood cell produced in bone marrows. Their main function is to transport oxygen from and to various tissues and organs.

Leucocytes are the colourless blood cells. They are colourless because it is devoid of haemoglobin. They are further classified as granulocytes and agranulocytes. WBCs mainly contribute to immunity and defence mechanism.

Following are the important functions of the nuclear membrane:

• The nuclear envelope has tiny holes which are identified as nuclear pores. The pores enable the content to flow in and out of the nucleus. It also connects the outer membrane and the inner membrane.

• The nuclear envelope’s surface area extends and doubles the nuclear pores during the interphase part of cell division.

• Nuclear membrane shields the nucleus with a double membrane by many pores that help in controlling the crossing of macromolecules such as proteins and RNA and permit free passage of water, ions, ATP and small molecules. The membrane controls the flow of information in the cell as it is conducted by the macromolecules.