ICSE Class 9 Biology
Question 12 of 13
Tissues: Plant and Animal Tissues — Question 5
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Question Sandesh observed a slide containing the longitudinal section of a plant tissue found in all parts of the plant like-root, stem and leaves. Different types of cells are visible in the tissue as shown alongside in the diagram:
(a) Identify and name the kind of tissue shown above. Is it a kind of simple permanent tissue or complex tissue ?
(b) Distinguish between simple permanent tissue and complex permanent tissue.
(c) Write one important role of the above mentioned tissue.
(a) Phloem tissue. It is a complex permanent tissue.
(b)
| Simple permanent tissue | Complex permanent tissue |
|---|---|
| Made up of only one type of similar cells | Made up of more than one type of cells |
| Performs a single function like support or storage | Performs multiple functions, mainly transport |
| All cells are similar in structure and function | Cells are different in structure and function |
| Found in every part of plant | Found in vascular region of plant |
| Examples: Parenchyma, Collenchyma, Sclerenchyma | Examples: Xylem, Phloem |
(c) The role of phloem is transportation of food from the leaves to all parts of the plant.