Improve Write differences between (ASI) a) autotrophic nutrition - heterotrophic nutrition b) Ingestion - digestion c) Light reaction - dark reaction d) Chlorophyll - chloroplast 2. Give reasons (AS1) a) Why photosynthesis is considered as the basic energy source for most of living world? b) Why is it right to call the dark phase of photosynthesis as a light independent phase? c) Why is it necessary to destarch a plant before performing any experiment on photosynthesis? d) Why is not possihle to demonstrate respiration in green plant kept in sun light? B. Give examples (ASI) a) Digestive enzymes b) Organisms exhibiting heterotrophic nutrition c) Vitamins d) Nutritional deficiency diseases . From where do plants get the raw materials required for photosynthesis?(ASI) 5. Explain the process of photosynthesis in with the help of a flow chart? (ASI) 6. Name three end products of photosynthesis? (ASI) 5. What is the substance that connects light reaction and dark reaction? (AS1) B: In most of leaves the upper surface will be more green and shiny than the lower surface. Why? (ASI) 9. Explain the structure of chloroplast with a neatly labeled sketch. (AS5) 10. What is the role of acid in stomach? (ASI) 11. Mention the names of glands and organs which help in digestion? (ASI) 12. How is the small intestine designed to assimilate the food? explain. (ASI) 13. How are fats digested? Where do they get digested? (AS1) 14. What is the role of saliva in the digestion of food? (ASI) 5. What will happen to protein digestion as the medium of intestine is gradually rendered alkaline? 3 (ASI) 16. What is the role of roughages in the alimentary tract? (ASI) 7. What is malnutrition? Explain few nutritional deficiency diseases. (ASI) 8. How do fungi and bacteria obtain their nourishment? (AS2)​