Class 11 Biology - Chapter Anatomy of Flowering Plants NCERT Solutions | 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.
The dicot stem is characterised by the presence of conjoint, collateral, and open vascular bundles, with a strip of cambium between the xylem and phloem. The vascular bundles are arranged in the form of a ring, around the centrally-located pith. The ground tissue is differentiated into the collenchyma, parenchyma, endodermis, pericycle, and pith. Medullary rays are present between the vascular bundles.
The monocot stem is characterised by conjoint, collateral, and closed vascular bundles, scattered in the ground tissue containing the parenchyma. Each vascular bundle is surrounded by sclerenchymatous bundle-sheath cells. Phloem parenchyma is absent and water-containing cavities are present.
More Questions From Class 11 Biology - Chapter Anatomy of Flowering Plants
- Q:- What is stomatal apparatus? Explain the structure of stomata with a labelled diagram.
- Q:- Why are xylem and phloem called complex tissues?
- Q:- State the location and function of different types of meristem.
- Q:- What is periderm? How does periderm formation take place in dicot stem?
- Q:- Describe the internal structure of a dorsiventral leaf with the help of labelled diagrams.
- Q:- Explain the process of secondary growth in stems of woody angiosperm with help of schematic diagrams. What is the significance?
- Q:- The transverse section of a plant material shows the following anatomical features, (a) the vascular bundles are conjoint, scattered and surrounded by sclerenchymatous bundle sheaths (b) phloem parenchyma is absent. What will you identify it as?
- Q:- How is the study of plant anatomy useful to us?
- Q:- Name the three basic tissue systems in the flowering plants. Give the tissue names under each system.
- Q:- Draw illustrations to bring out anatomical difference between
(a) Monocot root and dicot root
(b) Monocot stem and dicot stem
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