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Prepared By : SARAH MIGDADY
Supervised by: Muhammad Wahsheh
epidermal hairs(tricomes)
Trichomes are epidermal protuberances located on aerial parts of plant, that protect plant from excess transpiration, high temperature.
the monocot stem does not contain trichomes while the dicot stem contains trichomes.
Silicon is the most abundant element in the earth's crust. Plants absorb silicon in the form of silicic acid from the soil. which is deposited as amorphous hydrated silica (SiO2.nH2O) in the plant body, although most plants do not accumulate silica noticeably.
The epidermis of the monocot stem does not undergo silica deposition while the epidermis of the dicot stem undergoes silica deposition.
The outermost layer of cells in the plant cortex, lying immediately below the epidermis.
While the hypodermis of the monocot stem is sclerenchymatous, the hypodermis of the dicot stem is chlorenchymatous.
ground tissue conducts the basic functions of photosynthesis, food storage, and support. Ground tissue is the least differentiated of the three major tissues
The ground tissue of the monocot stem is not differentiated while the ground tissue of the dicot stem is differentiated into steler and extra-steler tissue.
are sheets or ribbons of cells running from the inside of the plant to the outside. The function of medullary rays is to carry chemicals which fight invasion by insects
In addition, the monocot stem does not contain medullary rays while medullary rays are present in the dicot stem.
Number of Vascular Bundles
Another difference between monocot stem and dicot stem is that monocot stems contain numerous vascular bundles while dicot stems contain 4 to 8 vascular bundles.