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प्रश्न
Answer the following in short.
What is venation? State its various types.
उत्तर
The arrangement of veins and veinlets on the lamina of a leaf is called venation. The venation is of two types:
(a).Reticulate venation: Veins are arranged like a network,
e.g. Leaves of mango, Peepal, and guava.
(b). Parallel venation: Veins run parallel to each other.
e.g. Leaves of banana, grass.
APPEARS IN
संबंधित प्रश्न
Tick (✓) the appropriate answer:
This leaf shows parallel venation:
Complete the crossword using the clues given below. Check your performance with the correct solutions given below
Clues across:
1. The plant that bears buds in leaves for propagation.
2. The flattened green part of the leaf.
3. Underground plant part.
4. The structure that develops into flower.
Clues down:
5. The central big vein of a leaf.
6. A modification seen in cactus.
State if the following statement IS true or false. Correct the statement if it is false.
The point on the stem from where leaves and branches arise is called Internode
Tick the most appropriate answer
The wide flat part of the leaf is called the
Give examples of 3 plants that have:
single-seeded fruits
Very Short Answer Type Question:
What is lamina?
The tip of the leaf is
Which of the following leaves have reticulate venation?
Wheat, tulsi, maize, grass, coriander (dhania), China rose
______ plant’s leaves grow up to 3 meters across.
Observe the picture of an activity given as Figure carried out with leaves of plants and polythene bag.
Now answer the following.
- Which process is demonstrated in the activity?
- When will this activity show better results on a bright sunny day or a cloudy day?
- What will you observe in the polythene bag after a few hours of setting up the activity?
- Mention any one precaution you must.
