Biology
• One mark questions
1. Write the equation of photosynthesis.
2. What is transpiration?
3. What is translocation?
4. Name the secretion secreted from gastric glands.
5. Which muscles control the movement of food from stomach?
6. Which acid is responsible for the cramping of muscles?
7. Which is the structural and functional unit of human kidney?
8. Name the excretory substances excreted from human kidney.
9. Which process help in removal of waste substances from blood while kidney failure?
10. What is synapse?
11. What is reflex action?
12. What is reflex arc?
13. The flow of energy is unidirectional in an ecosystem. Why?
14. In the food chain including snake, insect, grass and frog. Identify the trophic level.
15. Name the chemical substance present in blue print necessary for body design of organism.
16. The presence of which bacteria indicates pollution of water.
17. What are the poisonous gases released during burning of fossil fuel?
• Two marks questions
1. What are the important events of photosynthesis?
2. Differentiate between autrophic and heterotrophic nutrition.
3. Differentiate between saprophyte and parasites.
4. List the role of Hcl in stomach.
5. Differentiate between arteries and veins.
6. Differentiate between reflex action and walking.
7. What are the reasons for the depletion of ozone layer?
8. What is bio-magnification? Give examples.
9. How DNA is responsible for changing of body structure of an organism?
10. Draw labeled diagram to show binary fission in Amoeba.
11. Diagram – Neuron
12. What are the functions of testis in human beings?
13. What are the diseases spread through sexual contact?
14. Diagram of a vertical section of a flower.
15. Diagram of germination of pollen grain.
16. Diagram of excretory system
17. Diagram of opening and closing of stomata.
• Three marks questions
1. What are the different ways in which glucose is oxidized to provide energy in various
organisms?
2. Write three types of blood vessels and their function.
3. Diagram of digestive system.
4. Diagram of nephron.
5. List the function of following plant harmones- Aucin, Gibberllen, Cytokining, Abcisic Acid.
6. The timing and amount of hormone released are regulated by feedback mechanism. Justify
the statement with an example
7. Diagram – Human brain.
8. What is ozone? How does it affect any ecosystem?
9. Differentiate between binary fusion and multiple fusion
• Four marks questions
1. Write the important components and their functions of blood.
2. Diagram – Human Heart.
3. Define the following terms-
a) Photo tropism
b) Geo tropism
c) Hydro tropism
d) Chemo tropism
4. What are the consequences of ozone layer depletion?
5. What is ozone layer depletion? List the causes of ozone layer depletion.
6. What are the functions of placenta?
7. What are 5R practices which protects environmental. Explain briefly.
