FORESTRY
PLANT AND WOOD ANATOMY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following statements is true?
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The collenchyma occurs in layers below the epidermis in monocotyledonous plants
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Sclerenchyma cells are usually dead and without protoplasts
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Xylem parenchyma cells are living and thin-walled and their cell walls are made up of lignin
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The companion cells are e specialised sclerenchymatous cell
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Explanation:
Detailed explanation-1: -Thus, the correct answer is ‘Sclerenchyma cells are usually dead and without protoplasts.
Detailed explanation-2: -It loses the property of cell division. Sclerenchyma is dead tissue. They give mechanical support to the plants. They are usually devoid of protoplast.
Detailed explanation-3: -description. Mature sclerenchyma cells are usually dead cells that have heavily thickened secondary walls containing lignin. The cells are rigid and nonstretchable and are usually found in nongrowing regions of plant bodies, such as the bark or mature stems.
There is 1 question to complete.