STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
MORPHOLOGY OF FLOWERING PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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sunflower
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Pistia
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pea
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wheat
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Detailed explanation-1: -It is a perennial monocotyledon with thick, soft leaves that form a rosette. It floats on the surface of water and its roots are hanging submerged beneath the floating leaves. Because of the fact that Pistia is hydrophyte, its roots have an insignificant role in water absorption.
Detailed explanation-2: -Solution : Pistia is hydrophyte where absorption of water by root is insignificant.
Detailed explanation-3: -But in hydrophytes, the role of roots to absorb water becomes negligible.
Detailed explanation-4: -Water enters the cells of the root hair by the process of osmosis. Osmosis is the movement of water from a region of higher concentration to a region of lower concentration through a semi-permeable membrane. Hence, they perform the function of absorption.