Lenticels are involved in
Transpiration
Gaseous exchange
Food transport
Photosynthesis
B.
Gaseous exchange
Plants have stomata and Lenticles involved in gaseous exchange. In stems, the living cells are organised in thin layers inside and beneath the bark. They have openings called Lenticles.
Draw illustrations to bring out anatomical difference between:
(a) Monocot root and dicot root
(b) Monocot stem and dicot stem
The 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?
Why are xylem and phloem called complex tissues?
What is stomatal apparatus? Explain the structure of stomata with a labelled diagram.
Name the three basic tissue systems in the flowering plants. Give the tissue names under each system.
How is the study of plant anatomy useful to us?
What is periderm? How does periderm formation take place in the dicot stems?
Describe the internal structure of a dorsiventral leaf with the help of labelled diagrams.
Mock Test Series
