iii. Differentiate between collenchyma and parenchyma with respect to the location and shape of
cells.
iv. Mention the important constituents of blood.
v. State the functions of areolar and adipose tissues.
vi. Sketch out the kind of cells present in human brain with proper labelling

Dear Student,

Please find below the solution of your asked query:

(iv) Components of blood are :

• Red blood cells (RBCs): Red blood cells are the most abundant cells in the blood. These cells contain a red pigment called haemoglobin. It is the haemoglobin which carries oxygen and transports it to all parts of the body.
• White blood cells (WBCs): WBCs are colourless cells without haemoglobin. They fight against infections and protect the body from foreign particles such as germs and bacteria.
• Platelets: Platelets are the smallest cells in the blood. The main function of platelet is to prevent bleeding.
• Plasma: Fluid part of blood is called plasma.

(v) Functions of Adipose Tissues are:

• It serves as a fat reservoir.
• It provides shape to the limbs and the body.
• It keeps visceral organs in position. It forms shock - absorbing cushions around kidneys and eye balls.

      Functions of areolar tissue:

• It helps in supporting internal organs.
• It helps in repairing the tissues of the skin and muscles.

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