Nutrition in Plants Class 7 PPT

 Page 1


CHAPTER - 1 
 
NUTRITION IN PLANTS 
MADE BY-: 
 RAHAT 
Page 2


CHAPTER - 1 
 
NUTRITION IN PLANTS 
MADE BY-: 
 RAHAT 
1) Nutrients :- 
   The components of food like carbohydrates, fats, proteins vitamins and 
minerals are called nutrients. 
   Nutrients help living organisms :- 
  i) To build their bodies. 
 ii) To grow. 
iii) To repair the damaged parts of their bodies. 
iv) To provide energy to carry out life processes. 
Page 3


CHAPTER - 1 
 
NUTRITION IN PLANTS 
MADE BY-: 
 RAHAT 
1) Nutrients :- 
   The components of food like carbohydrates, fats, proteins vitamins and 
minerals are called nutrients. 
   Nutrients help living organisms :- 
  i) To build their bodies. 
 ii) To grow. 
iii) To repair the damaged parts of their bodies. 
iv) To provide energy to carry out life processes. 
 2) Nutrition :- 
       The mode of taking food by an organism and its utilization in the body is called 
nutrition. 
3) Modes of nutrition :- There are two main modes of nutrition in living 
organisms. They are autotrophic nutrition and heterotrophic nutrition. 
i) Autotrophic nutrition :-  is nutrition in which organisms can prepare their own 
food.  
   Organisms which can prepare their own food are called autotrophs. 
ii) Heterotrophic nutrition :- is nutrition in which organisms get their food directly 
or indirectly from plants. 
   Organisms which get their food directly or indirectly from plants are called 
heterotrophs. 
 
 
Page 4


CHAPTER - 1 
 
NUTRITION IN PLANTS 
MADE BY-: 
 RAHAT 
1) Nutrients :- 
   The components of food like carbohydrates, fats, proteins vitamins and 
minerals are called nutrients. 
   Nutrients help living organisms :- 
  i) To build their bodies. 
 ii) To grow. 
iii) To repair the damaged parts of their bodies. 
iv) To provide energy to carry out life processes. 
 2) Nutrition :- 
       The mode of taking food by an organism and its utilization in the body is called 
nutrition. 
3) Modes of nutrition :- There are two main modes of nutrition in living 
organisms. They are autotrophic nutrition and heterotrophic nutrition. 
i) Autotrophic nutrition :-  is nutrition in which organisms can prepare their own 
food.  
   Organisms which can prepare their own food are called autotrophs. 
ii) Heterotrophic nutrition :- is nutrition in which organisms get their food directly 
or indirectly from plants. 
   Organisms which get their food directly or indirectly from plants are called 
heterotrophs. 
 
 
4)Photosynthesis - Food making process in plants :- 
  Photosynthesis is the process by which plants prepare their on food by using 
sunlight, water, carbon dioxide and chlorophyll. 
  Photosynthesis take place in the leaves. 
  i) Sunlight is obtained from the sun. 
 ii) Water  is absorbed by the roots and transported to the leaves. 
iii) Carbon dioxide is taken from the air through small pores in the    
      leaves called stomata.  
iv) Chlorophyll are the green pigments present in the leaves. 
Page 5


CHAPTER - 1 
 
NUTRITION IN PLANTS 
MADE BY-: 
 RAHAT 
1) Nutrients :- 
   The components of food like carbohydrates, fats, proteins vitamins and 
minerals are called nutrients. 
   Nutrients help living organisms :- 
  i) To build their bodies. 
 ii) To grow. 
iii) To repair the damaged parts of their bodies. 
iv) To provide energy to carry out life processes. 
 2) Nutrition :- 
       The mode of taking food by an organism and its utilization in the body is called 
nutrition. 
3) Modes of nutrition :- There are two main modes of nutrition in living 
organisms. They are autotrophic nutrition and heterotrophic nutrition. 
i) Autotrophic nutrition :-  is nutrition in which organisms can prepare their own 
food.  
   Organisms which can prepare their own food are called autotrophs. 
ii) Heterotrophic nutrition :- is nutrition in which organisms get their food directly 
or indirectly from plants. 
   Organisms which get their food directly or indirectly from plants are called 
heterotrophs. 
 
 
4)Photosynthesis - Food making process in plants :- 
  Photosynthesis is the process by which plants prepare their on food by using 
sunlight, water, carbon dioxide and chlorophyll. 
  Photosynthesis take place in the leaves. 
  i) Sunlight is obtained from the sun. 
 ii) Water  is absorbed by the roots and transported to the leaves. 
iii) Carbon dioxide is taken from the air through small pores in the    
      leaves called stomata.  
iv) Chlorophyll are the green pigments present in the leaves.