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प्रश्न
Distinguish between: Autotrophic nutrition and Heterotrophic nutrition.
उत्तर
| Autotrophic nutrition | Heterotrophic nutrition |
| 1. It is the mode of nutrition in which organisms produce their own organic food. | It is the mode of nutrition in which organisms depend on other organisms for their food. |
| 2. Organisms producing their own food are known as autotrophs. | Organisms depending on others for food are known as heterotrophs. |
| 3. Autotrophs use simple inorganic substances present in the surroundings to produce food. | Heterotrophs depend on other organisms to get their food. |
| E.g. Plants | E.g. Fungi |
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संबंधित प्रश्न
In photosynthesis, solar energy is absorbed by the pigment called ______.
Name the pigment which can absorb solar energy.
Name the organelle of plant cells in which photosynthesis occurs.
Apart from carbon dioxide and water, name four other raw materials which are needed by the plants.
Name the green pigment present in the leaves of a plant.
Photosynthesis converts energy X into energy Y. What are X and Y?
State the various steps involved in the process of photosynthesis.
How do plants obtain food?
Two similar green plants are kept separately in oxygen free containers, one in dark and the other in continuous light. Which one will live longer? Give reasons.
What is photosynthesis?
Explain the mechanism of photosynthesis.
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?
Do all cells use oxygen to produce energy?
Explain the process of production of food in plants.
Which of the following equations is the summary of photosynthesis?
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.
Which of the following steps can be followed for making the apparatus air tight?
- placing the plants on glass plate
- using a suction pump.
- applying aseline to seal the bottom of jar.
- creating vacuum
The term that is used for the mode of nutrition in yeast, mushroom and bread-mould is
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.
Name the following:
A plant that is partially autotrophic.
