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प्रश्न
What are the differences between autotrophic nutrition and heterotrophic nutrition?
उत्तर
| Autotrophic Nutrition | Heterotrophic Nutrition |
| The mode of nutrition in which an organism prepares its own food with the help of simple inorganic materials like water and carbon dioxide from the surroundings is known as autotrophic nutrition. | The mode of nutrition in which an organism cannot prepare its own food and depend upon other organisms for its food is known as heterotrophic nutrition. |
| Food is synthesised from simple inorganic raw materials such as CO2 and water. | Food is obtained directly or indirectly from autotrophs. This food is broken down with the help of enzymes. |
| Chlorophyll is required. | Chlorophyll is not required. |
| Food is generally prepared during day time. | Food can be obtained at all time. |
| All green plants and some bacteria have this type of nutrition. | All animals and fungi have this type of nutrition. |
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संबंधित प्रश्न
Name the following:
A plant that has both autotrophic and heterotrophic mode of nutrition.
Name the process by which plants make food.
The leaves of a plant first prepare food A by photosynthesis. Food A then gets converted into food B. What are A and B?
Why do we boil the leaf in alcohol when we are testing it for starch?
Name the green pigment present in the leaves of a plant.
Which simple food is prepared first in the process of photosynthesis?
Name the food which gets stored in plant leaves.
What are autotrophs? Give one example of autotrophs.
State the various steps involved in the process of photosynthesis.
What are the various conditions necessary for photosynthesis?
The opening and closing of the stomatal pores depends upon:
(a) oxygen
(b) water in guard cells
(c) temperature
(d) concentration of CO2 in stomata
An organism A which cannot move from one place to another, makes a simple food B from the substances C and D available in the environment. This food is made in the presence of a green coloured substance E present in organs F in the presence of light energy in a process called G. Some of the simple food B also gets converted into a complex food H for storage purposes. The food H gives a blue-black colour with dilute iodine solution.
(a) What is (i) organism A (ii) food B, and (iii) food H?
(b) What are C and D?
(c) Name (i) green coloured substance E, and (ii) organ F.
(d) What is the process G?
List the three events that occur during the process of photosynthesis. Explain the role of stomata in this process.
Why is plant food not produced in any other parts of the plant except the green ones?
The Figure shown below represents an activity to prove the requirements for photosynthesis. During this activity, two healthy potted plants were kept in the dark for 72 hours. After 72 hours, KOH is kept in the watch glass in setup X and not in setup Y. Both these setups are air tight and have been kept in light for 6 hours. Then, Iodine Test is performed with one leaf from each of the two plants X and Y.
This experimental set up is used to prove essentiality of which of the following requirements of photosynthesis?
Differentiate between an autotroph and a heterotroph
Observe the experimental setup shown below. Name the chemical indicated as ‘X’ that can absorb the gas which is evolved as a byproduct of respiration.
Opening and closing of stomata is due to ______.
What are the by-products of autotrophic nutrition?
