1.

Distinguish between dicot and monocot leaf on the basis of following characters.

Answer»
  Characters Dicot leaf Monocot leaf
  Stomata Stomata are restricted to lower epidermis.
Guard cells of stoma are kidney shaped.
Stomata occur on both epidermis.
Guard cells of stoma are dumbbell shaped.
 Intercellular space More intercellular spaces due to presence of spongy parenchyma. Less intercellular spaces as mesophyll is not differentiated into spongy and palisade tissue.
 Venation Reticulate venation Parallel venation
 Vascular bundleVascular bundles of varying size. The size of the vascular bundles is dependent on the size of the veins which vary in thickness in dicot leaf.Vascular bundles are nearly of similar size (Except in main veins).
 Mesophyll cells Mesophyll tissue is differentiated into palisade parenchyma and spongy parenchyma. Mesophyll tissue is not differentiated into palisade parenchyma and spongy parenchyma.


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