Give reason
1. Young stems and leaves have flexibility. What is the reason behind it?
2. The trunk of the tree have a hard protective covering. What are the tissue and name the complex substance which makes it hard??
3. Define Periderm.
Answers
Explanation:
1) this is because of presence of a flexible tissue called collenchyma....
2) it is because of a dead tissue called 'Bark'
and tissues are called Sclerenchyma..
3) It is a type of protective tissue that is active to any infection or injury..
1. Collenchyma
2. Dead cells- Bark and other tissues called Sclerenchyma
3. The periderm is a protective tissue
Explanation:
Collenchyma is the reason for the flexibility of young stems and leaves. It is a supporting tissue of living elongated cells with irregular cell walls.
Sclerenchyma is the tissue which makes the trunk harder. It is a supportive tissue of vascular plants, consisting of a thick wall. They usually die on reaching maturity but continue to fulfil their structural purpose in the plant.
The periderm is a protective outer layer of tissue that covers the surfaces of stems and roots of perennial plants during their secondary growth.
To learn more:
Question 11 What is periderm? How does periderm formation take ...
https://brainly.in/question/1529141
Why is periderm formation not seen in annual plants? - Brainly.in
https://brainly.in/question/3405942