CBSE Important Questions

Life Processes

Very short and short answer type questions: 1 mark and 2 marks each

Q. 1. What are nutrients?

Q. 2. Name the life process that provides energy.

Q. 3. Which process provides all living things with raw materials for energy and growth?

Q. 4. Name the essential pigment that absorbs light.

Q. 5. Can you name the gaseous raw material of photosynthesis?

Q. 6. If grana of a chloroplast are removed then, which of the reaction of will not be carried out?

Q. 7. Name the gas that is produced as a by-product during photosynthesis.

Q. 8. The function of salivary amylase is to convert

1. Fats into fatty acids.
2. Proteins into amino acids.
3. Starch into sugar.
4. Sugar into starch

Q. 9. Artificial removal of nitrogenous wastes from the human body in the event of kidney failure is

1. Plasmolysis 
2. Dialysis
3. Diffusion 
4. Osmosis

Q. 10. Tick the correct statement.

1. Arteries carry blood away from the heart while veins carry blood towards heart.
2. Veins carry blood away from the heart while arteries carry blood towards heart.
3. Both of them carry blood in the same direction.
4. Either of them can carry blood away from the blood.

Q. 11. Name the pore through which gaseous exchange takes place in older stems.

Q. 12. Why the blood is red ?

Q. 13. What is the functional unit of kidney?

Q. 14. Define translocation.

Q. 15. Name the vessel that brings oxygenated blood from lungs to heart.