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प्रश्न
Distinguish between the following:
Autotrophs and Heterotrophs
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उत्तर
| Sr. No. |
Autotrophs | Heterotrophs |
| 1. | They prepare their own food from simple inorganic raw materials. | They depend on autotrophs for their food and are unable to synthesize their own food. |
| 2. | They synthesize organic compounds by photosynthesis or chemosynthesis. | They obtain energy by consuming other living or dead organisms. |
| 3. | Serve as primary producers in ecosystems. | Serve as consumers and decomposers in ecosystems. |
| 4. | Found at the base of the food chain. | Found at higher trophic levels in food chains. |
| 5. | For example, green plants and some bacteria. | For example, animals, fungi, and many bacteria. |
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संबंधित प्रश्न
Explain the following term with an example:
Carnivore
Distinguish between the following:
Herbivore and Carnivore
Name the sources of the following:
Lactose
Name the sources of the following:
Vitamin A
Classify according to food-type.
Goat
Classify according to food-type.
Fungus
Short Answer Type Questions:
A small child became very thin and lean and later he became so weak that he could not move. Which nutrients should he eat so as to improve his health?
Name the following:
The nutrients which mainly give energy to our body.
Fill in the blanks of the paragraph given below with the words provided in the box.
| chlorophyll, energy, food, carbon dioxide, water, photosynthesis |
Leaves have a green pigment called ___(a)___ which captures ___(b)___ from sunlight. This ___(c)___ is used in the process of ___(d)___ and along with other raw materials like ___(e)___ and ___(f)___ synthesize ___(f)___.
Take a potted plant with broad leaves. Take two strips of black paper and cut out a small square in the centres. Cover a part of two leaves with these papers and secure them with paper clips Figure. Keep the plant in sunlight for 2–5 days. Observe the difference in the colour of the covered and the uncovered portions on the leaf. Perform iodine test on this leaf. Did the two parts show different results? Now take second leaf. Remove the strip and expose the covered part to the sunlight for 2–3 days and do the iodine test again. Describe your observations.
