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प्रश्न
Why is transport of materials necessary in a plant or in an animal? Explain.
उत्तर
- Transport of materials is necessary in both plants and animals, as every cell needs a regular supply of nutrients and oxygen to release energy through respiration.
- The food that we eat is broken down into smaller components to be absorbed by the cells. The oxygen that we inhale is also transported to all the cells of the body.
- In plants and animals, food, water, oxygen and other important useful substances are transported to various parts of the body through blood through which a human being performs biological activities.
- Through transportation, harmful substances produced in those organs, such as carbon dioxide, sweat, urine, etc., are removed from the body. Therefore, the transportation of substances is necessary for plants and animals.
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संबंधित प्रश्न
What are the components of the transport system in highly organised plants?
The xylem in plants is responsible for ______.
Water absorption through roots can be increased by keeping the plants ______.
The process of carrying food from the leaves to other parts of a plant is called:
Match the following.
| 1. Symplastic pathway | (a) Leaf |
| 2. Transpiration | (b) Plasmodesmata |
| 3. Osmosis | (c) Pressure in xylem |
| 4. Root Pressure | (d) Pressure gradient |
The phloem is responsible for the translocation of food.
Plants use the energy stored in ATP to accomplish the process of transportation of:
In a tall tree, which force is responsible for pulling water and minerals from the soil?
These consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:
Assertion: Amphibians can tolerate mixing of oxygenated and deoxygenated blood.
Reason: Amphibians are animals with two chambered heart
Match the pairs.
| Group ‘A’ | Group ‘B’ | ||
| (1) | Parasitic plant | (a) | Mushroom |
| (2) | Insectivorous plant | (b) | Lichen |
| (3) | Saprophytic plant | (c) | Drosera |
| (4) | Symbiotic plant | (d) | Cuscuta |
