Long Answer TypeExplain the process of secondary growth in the stems of woody angiosperms with the help of schematic diagrams. What is its significance?
Draw illustrations to bring out anatomical difference between:
(a) Monocot root and dicot root
(b) Monocot stem and dicot stem
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 a dicot stem? Give reasons.
Short Answer TypeThe transverse section of a plant material shows the following anatomical features:
(a) the vascular bundles are conjoint, scattered and surrounded by a sclerenchymatous bundle sheaths.
(b) phloem parenchyma is absent. What will you identify it as?
Long Answer TypeShort Answer TypeName the three basic tissue systems in the flowering plants. Give the tissue names under each system.
The three basic tissue system in plants are:
(i) Epidermal tissue system: It forms the outermost covering of the whole plants body. It comprises of epidermal cells, stomata and the epidermal appendages like trichomes and hairs.
(ii) The vascular tissue system: It consists of the phloem and the xylem
(iii) Ground tissue system: All the tissues except the vascular bundles and the epidermis constitute the ground tissue system. For example parenchyma, collenchyma and sclerenchyma and mesophyll cells.
Long Answer Type
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