Question

Lymph differs from blood in possessing ____________
A. Only WBC
B. More RBC and WBC
C. More RBC and few WBC
D. More WBC and few RBC

Answer 1

Hint: The lymph system consists of a network of organs, lymph nodes, lymph ducts, and lymph vessels that includes tonsils, adenoids, spleen and thymus which helps to transport lymph from tissues to the bloodstream. Lymph circulates through the lymphatic system from lymphatic vessels to lymph nodes that help the body to fight against infections and foreign materials such as bacteria and cancer cells.

Complete answer:
Lymph plays an important role in the immune system and is responsible to defend the body against illness or other disease-causing microorganisms.
Lymph is a fluid connective tissue which mainly contains white blood cells and fluid in the intercellular spaces. It is a clear-colourless fluid which consists of less protein and lipids and floating amoeboid cells called the white blood cells (WBCs), most especially lymphocytes.
Blood is also a fluid connective tissue which is made up of liquid and solids. The fluid part contains water, salts and protein and the solid part is composed of red blood cells, white blood cells and platelets.
Lymph which contains less protein and lacks red blood cells, differs from the blood because it possesses only white blood cells.

Hence, the correct answer is option (A).

Note: Lymphatic system plays a major role in protecting our human body from illness and thereby it constitutes the immune system. The major function of the lymphatic system is to maintain the fluid balance in the body as well as to protect the body against infections. It builds immunity and produces antibodies to attack on the disease-causing microbes with the help of special white blood cells called lymphocytes.