1. Why do non green plants exhibit heterotrophie nutrition plain with examples
2. What is photosynthesis Describe the process of photosynthesis
3. What are the essential conditions for photosynthesis? Seate how the plants get them
4. Differentiate between autotrophic and heterotrophie nutrition
Autotrophs lack digestive system while herbivores and carnivores have one .justify
Answers
Answer:
1 Ans :-
Non-green plants do not have chlorophyll (green pigment) necessary to carry out the process of synthesizing food (photosynthesis). Hence, they have the heterotrophic mode of nutrition. Example: Indian pipe plants obtain food from roots of photosynthetic trees.
2 Ans :-
Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.
Types of photosynthesis
There are two types of photosynthetic processes: oxygenic photosynthesis and anoxygenic photosynthesis. The general principles of anoxygenic and oxygenic photosynthesis are very similar, but oxygenic photosynthesis is the most common and is seen in plants, algae and cyanobacteria.
3 Ans :-
There are four factors which are necessary for the process of photosynthesis, water, carbon dioxide, sunlight, and chlorophyll. Chlorophyll pigments are present in the plant, carbon dioxide is obtained from the atmosphere, water is absorbed from the soil by the roots. There are many other factors that affect the rate of photosynthesis like temperature.
4 Ans :-
The differences between autotrophs and heterotrophs are given below:
Autotrophic nutrition (any two)
- Organism prepares its own food.
- Food is prepared from carbon dioxide and water in presence of sunlight.
- Green plants and certain bacteria like blue green algae have autotrophic nutrition.
- Autrotrophs are producers in the food chain.
Heterotrophic nutrition (any two)
- Organism depends on other organisms for food.
- cannot be prepared from carbon dioxide or water.
- All the animals, most bacteria have heterotrophic nutrition.
- Heterotrophs are consumers in the food chain.