100 DAYS ACTION PLAN - MARCH 2026
UNIT 1 – LIFE PROCESSES
1 Marks Questions: Level 1
24. What are the materials required for photosynthesis?
CO₂, water, sunlight, and chlorophyll.
25. The xylem is responsible for _____ in plants:
Ans: a) transport of water
26. What is nutrition?
The process of taking in food and using it for energy and growth.
27. Digestion does not occur in which part of alimentary canal?
Oesophagus
28. Expand ATP?
Adenosine Triphosphate.
29. What is the instrument used by doctors for measuring B.P.?
Sphygmomanometer
30. What is plasma?
The liquid part of blood that carries nutrients, wastes, and proteins.
31. Finger like projections in small intestine are called:
Villi
32. Why are cartilagenous rings present in trachea?
To keep the trachea open and prevent it from collapsing.
33. Which one will have longer small intestine: A goat or a tiger? Why?
Goat, because it is herbivorous and needs a longer intestine to digest cellulose.
34. What will happen if HCl is not secreted in the stomach?
• Pepsin will not form, and protein digestion stops.
• Bacteria in food won’t be killed.
• Bacteria in food won’t be killed.
35. What will happen if the respiratory tract is not moist or there is no mucus?
• Dust and germs won’t be trapped.
• Infections and breathing problems increase.
• Infections and breathing problems increase.
36. What will happen if the platelets are not present in the blood?
• Blood will not clot.
• Even small injuries may cause excessive bleeding.
• Even small injuries may cause excessive bleeding.
37. What is the digestive juice without enzymes?
Bile juice
1 Marks Questions: Level 2
22. Give an example for parasitic nutrition in plants.
Cuscuta (Dodder plant)
23. ADP + ............ = ATP
ADP + Pi → ATP
24. 1 ATP molecule releases ............ energy in K.J.
30.5 KJ
25. How many carbon atoms are in each pyruvate molecule?
3 carbon atoms
26. Name the different types of heterotrophic nutrition.
Holozoic, Saprophytic, Parasitic
27. What are blood sucking animals called? Give example.
Called sanguivores or Hematophagous.
Example: Leech, Mosquito
Example: Leech, Mosquito
28. What type of chemical reactions take place in our body to break down the food materials?
Hydrolysis, Oxidation–reduction reactions, Breakdown (catabolic) reactions.
29. Herbivores : Very long small intestine :: Carnivores : ............
Carnivores : Short small intestine
30. Kidneys are essential organs for survival, how do you support your statement?
• Kidneys remove nitrogenous wastes from blood.
• Maintain water and salt balance.
• Without kidneys, poisonous wastes accumulate and cause death.
• Maintain water and salt balance.
• Without kidneys, poisonous wastes accumulate and cause death.
31. Organ donation means donation of life, do you agree with the statement? Why and why not?
Yes, because donated organs can save a person’s life. Organ donation helps patients whose organs have failed. It gives a new chance for survival.
32. The carbon and energy requirements of autotrophic organisms are fulfilled by photosynthesis. Justify.
• Plants take CO₂ and water to make food.
• Sunlight provides energy for photosynthesis.
• Photosynthesis produces glucose for plant growth.
• Sunlight provides energy for photosynthesis.
• Photosynthesis produces glucose for plant growth.
33. Salivation on thinking of our favourite dish is a psychological response of digestive process. How do you support this statement.
Thinking of tasty food stimulates brain. Brain signals salivary glands to release saliva. This prepares the mouth for digestion.
34. What will happen if the diaphragm is not there in the body?
Breathing becomes impossible. Lungs cannot expand or contract. Person cannot inhale oxygen or exhale CO₂.
35. Haemoglobin : Iron :: Chlorophyll : ............
Magnesium