Sunday, 9 July 2017

REVISION QUESTION FOR CLASS 7






                    1. Nutrition in Plants

 Q 1 Name a plant that has both autotrophic as well as heterotrophic mode of nutrition.                                                    Mark (1)
 Q 2 Name the green pigment that helps the leaves to capture sunlight.                                                                   Mark (1)
 Q 3 What is a lichen?                                              Mark (1)
 Q 4 What is the stored form of carbohydrates in plants? Mark (1)
 Q 5 Why in the rainy season does a loaf of bread turn blue, brown or greenish?                                                                 Mark (1)
 Q 6 Write the chemical equation representing the process of photosynthesis.                                                         Marks (2) 
Q 7 How are nutrients replenished in the soil?        Marks (2)
 Q 8 Why does the pitcher plant feed on insects though it is green?                                                                                    Marks (2) 
Q 9 How would you test the presence of starch in leaves? Marks (2)
 Q 10 What do you mean by heterotrophs?                Marks (2) 
 Q11 What is Autotrophic nutrition? Give an example of autotrophs.                                                                 Marks (2)
 Q 12 Why do organisms need to take food?             Marks (2)
 Q 13 Define nutrition.                                              Marks (2)
 Q 14 What are nutrients?                                          Marks (2) 
Q 15 (i) How do fungi appear suddenly during the rainy season? 
(ii) What is the mode of nutrition adapted by fungi?     Marks (3) 
Q 16 What is the difference between parasites and saprotrophs? Give an example for each.                                          Marks (3)
 Q 17 (i) Define the process of photosynthesis.
 (ii) What is site of the photosyntheis in plants?        Marks (3)
 Q 18 What are insectivorous plants? Explain with example. 
                                                                                    Marks (5) 
Q 19 Draw the diagram of: (a) Stomata (b) Schematic diagram showing photosynthesis                                           Marks (5)
 Q 20 What is symbiosis? Explain this relationship with help of two examples.                                                                 Marks (5)
 Q 21 Why are leaves called the food factories of plants? Explain.                                                                                       Marks (5) 

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