Question

Which of the following components is produced from megakaryocytes?
A. Red Blood Cells
B. White Blood Cells
C. Platelets
D. Plasma

Answer 1

Megakaryocytes are large bone marrow cells with lobed nuclei that are responsible for the production of blood thrombocytes or platelets which are necessary for normal blood clotting. The megakaryocytes are obtained from hematopoietic stem cell precursor cells present in the bone marrow. They are mainly produced by the liver, kidneys, spleen and bone marrow.

Complete answer:
Option A Red blood cells: Also referred to as red cells, red blood corpuscles, haematids, erythroid cells or erythrocytes, red blood cells or RBCs are the most common type of blood cells and the main means for vertebrates to supply oxygen to body tissues through the bloodstream via the circulatory system. Red blood cells are not produced from megakaryocytes.
Hence option A is not correct.
Option B: White blood cells: Also called as leukocytes or leucocytes, the white blood cells or WBCs are cells of the immune system that are involved in protecting the body from infectious diseases and foreign invaders. They are not produced by megakaryocytes.
Hence option B is not correct.
Option C Platelets: Also known as thrombocytes, platelets are a component of blood whose function is to react to bleeding caused by blood vessel damage through agglutination, thereby causing blood clots. Platelets have no nucleus; they are cytoplasmic fragments derived from megakaryocytes. Since platelets are produced from megakaryocytes.
Option C is the correct answer.
Option D Plasma: Plasma is a light-yellow liquid component of blood. It suspends blood cells, proteins and other components of whole blood. It represents about half of the total blood volume of the body. It is the intravascular part of the extracellular fluid. Plasma is not produced by megakaryocytes.
Hence option D is not correct.

So, the correct answer is “Option C”.

Note:
Low platelet concentrations are called thrombocytopenia and are caused by decreased production or increased destruction of platelets. A high concentration of platelets is called thrombocytosis and is congenital, reactive or due to unregulated production: a myeloproliferative neoplasm or some other myeloid neoplasm. Thrombocytopathy is a platelet function disorder.