Cell Poocess
on their walls. .
A chithin
b suberin C a and b
(d) none of above
Answers
Answer:
Suberin is found in the phellem layer of the periderm (or cork). This is an outermost layer of the bark. The cells in this layer are dead and abundant in suberin, preventing water loss from the tissues below.
Mature sclerenchyma cells are dead cells that have heavily thickened walls containing lignin. Such cells occur in many different shapes and sizes, but two main types occur, fibres and sclereids.
Collenchyma is strengthened by pectin so the cell wall is thickened unevenly. The collenchyma cell wall is composed of a primary wall made up of cellulose and at certain places, it is deposited within a secondary wall made up of hemicellulose or pectin.
In some higher plants, the cuticle is a water-impervious protective layer covering the epidermal cells of leaves and other parts and limiting water loss. It consists of cutin, a waxy, water-repellent substance allied to suberin, which is found in the cell walls of cork tissue.
So, the correct answer is option B.
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Answer:
none of above
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