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Ch-6. Life process
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Answers
1. Autotrophic Nutrition: It is the nutrition, in which, living organisms prepare their own food with the help of raw materials( sunlight,wind etc.) The example is Plants.
Heterotrophic Nutrition: It is the nutrition,in which, living organisms are dependent on other organisms for their food. Like Humans.
2. Stomata open to take in carbon dioxide during the day and release oxygen. They are also responsible for the process of transpiration. During the night they tend to close their openings. The closing and opening of the Stomata are on account of the movement of the water in and out of the guard cells..
3. Photosynthesis: It is the process, in which, plants prepare their food,in the presence of sunlight. They take in CO2( carbon dioxide ) and release O2( oxygen ).
Answer:
1. Autotrophic nutrition - Autotrophic nutrition is that mode of nutrition in which an organism makes its own food from the simple organic material like CO2 and water present in the surrounding ( with the help of sunlight )..
Heterotrophic nutrition - Heterotrophic nutrition is that mode of nutrition in which an organism cannot make its own food from simple inorganic material like CO2 and water , and depends on other organisms for its food...
3. The process by which plants make their own food like glucose from carbon dioxide and water by using sunlight energy in the presence of chlorophyll , us called photosynthesis..
the process of photosynthesis can be represented as..
6CO2 + 6H2O + light energy – C6H12O6 + 6O2...
The process of photosynthesis takes place in green leaves of a plant.