OBJECTIVE LIFE SCIENCE
PLANT PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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This component provides strength and rigidity in plant cell walls, especially in wood.
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Phloem
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Cellulose
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Lignin
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None of the above
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Explanation:
Detailed explanation-1: -The cellulose molecules provide tensile strength to the primary cell wall.
Detailed explanation-2: -Lignin is responsible for providing strength and rigidity to the cell wall of some algae and vascular plants. These cross-linked polymers are a very important component in the formation of the cell wall.
Detailed explanation-3: -Lignin is a class of complex organic polymers that form key structural materials in the support tissues of most plants. Lignins are particularly important in the formation of cell walls, especially in wood and bark, because they lend rigidity and do not rot easily.
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