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Cut a transverse section of young stem o...

Cut a transverse section of young stem of a plant from your school garden and observe it under the microscope. How would you ascertain whether it is a monocot stem or dicot stem? Give reasons.

Text Solution

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During examination of a cross section of young stem, if it shows the following details it belongs to dicot stem :
1. Internally, the stem is differentiated into epidermis cortex, vascular bundles and pith.
2. Hypodermis, if present, is collenchymatous.
3. Vascular bundles are arranged in a ring.
4. Vascular bundles are open.
During examination if the following details are seen, the young stem belongs to monocots :
1. Internally, the stem is not differentiated into cortex and pith.
2. Hypodermis, if present, is sclerenchymatous.
3. Vascular bundles are scattered in the ground tissue.
4. Each vascular bundle is closed and has a bundle sheath
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