Question

The following substance present on leaf epidermis reduces evaporation *

2 points

a) Cellulose

b) Starch

c) Cutin

d) Lignin

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Answer 1

The substance present on the leaf epidermis that is responsible for reducing evaporation is cutin .

Cutin is a waxy - water resistive substance consisting of polymeric esters of fatty acids present in cuticle - the outer waxy covering of plant's leaves .

It reduces evaporation , thus reducing the loss of water from plant and maintaining the turgidity of leaf cell .

It is present in both monocot as well dicot leaf .