Question
What are the various components of blood? State their functions.

Answer

The main components of blood are:
  1. Plasma: It carries all the dissolved substances such as proteins, digested food, common salt etc from one part to another part of the body.
  2. Red blood corpuscles (RBC): It carries oxygen from the lungs to all the cells of the body.
  3. White blood corpuscles (WBC): It fights infection and protects us from diseases.
  4. Platelets: It helps in the coagulation of blood in a cut or wound.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Sketch, labell and classify: Shark
Two organic compounds $A$ and $B$ have the same molecular formula $C_6H_{12}.$ Write the names and structural formulae:
  1. If $A$ is a cyclic compound.
  2. If $B$ is an open chain compound.
  3. Which compound contains single bonds as well as a double bond?
  4. Which compound contains only single bonds?
The gland A is attached to the wind pipe in the human body. The gland A makes and secretes a hormone B which controls the metabolism of carbohydrates, fats and proteins in the body. The non-metal element C is necessary for the formation of hormone B. The deficiency of C in the diet can cause a deficiency of hormone B in the body leading to a disease D in which the neck of a person appears to be swollen. People are advised to use salt E in cooking food so as to avoid disease D.
  1. Name (i) gland A, and (ii) hormone B.
  2. What is the element C?
  3. Name one type of food which can provide sufficient C in the diet of a person.
  4. Name (i) disease D, and (ii) salt E.
Explain the working of an astronomical telescope using refraction of light.
If mass of a planet is eight times the mass of the earth and its radius is twice the radius of the earth, what will be the escape velocity for that planet?
Complete the chart as per the objectives of first aid.
Which factors affect the social health?
Whether there had been mock drill by fire fighters under the disaster management scheme in your school? Which techniques did you see during the drill?
 Give names of three functional groups containing three different heteroatoms. Write name and structural formula of one example each.
explain the various effects of the disaster of railway accident.