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प्रश्न
How do leaves of plants help in excretion?
उत्तर
Leaves play an important role in excretion in plants because CO2 is expelled out through pores of stomata present in the leaf. Plants shed leaves to get rid of excretory products deposited on them.
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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 ______.
What substance/substances are transported in plants by:
xylem vessels and tracheids?
What is the other name of main vein?
What is the need of special tissues or organs for transport of substances in plants and animals?
Crossword Puzzle
ACROSS
1. Special tubes through which food material is carried inside the plants body.
3. Channel through which movement of water and minerals occurs.
4. Red coloured fluid inside blood vessels.
5. Loss of water in vapour from the leaves.
9. Four chambered organ located in the chest cavity.
10. Blood vessels which bring blood into the heart. DOWN
2. Red coloured pigment which is a carrier of oxygen.
6. Blood vessels which carry blood from the heart.
7. Blood cells which help in clotting of blood.
8. Process by which water passes into the root hair.
The site of photosynthesis in the cells of a leaf is ____________.
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
We need to water the soil in plants on a regular basis but it ultimately reaches the leaves of the plant. Explain how this takes place.
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 | (c) Drosera |
