Question

There are two substances 'A' and 'B'. 'A' contains solid and liquid particles and is used to transport gases, nutrients and metabolic waste in the body. 'B' is responsible for the removal of extra cellular fluid from tissues. Identify 'A' and 'B'.

• A. A- Blood, B- Lymph
• B. A- Lymph, B- Blood
• C. A- Saliva, B- Blood
• D. A- Blood, B- Saliva

Answer 1

The correct option is A A- Blood, B- Lymph

Blood is a fluid connective tissue composed of plasma, WBCs, RBCs, and platelets.
Functions of blood:
$\bullet$ Provides oxygen to the cells.
$\bullet$ Helps to maintain homeostasis.
$\bullet$ Protects body against pathogens.
$\bullet$ Transports hormones, nutrients and waste materials.

Lymph is a pale-white fluid which circulates throughout the lymphatic system. It is responsible for the removal of interstitial fluid (the fluid that fills the spaces between the cells) from the tissues.
Functions of lymph:
$\bullet$ Maintains composition of tissue fluid and the volume of blood.
$\bullet$ Keeps the body cells moist.