HORTICULTURE

HORTICULTURE SCIENCE

PLANT BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following helps to reduce the lose of water from a plant?
A
the arrangement of palisade mesophyll cells
B
the presence of xylem
C
the waxy layer of cuticle
D
the arrangement of spongy mesophyll cells
Explanation: 

Detailed explanation-1: -So the leaf has another adaptation to reduce water loss: the waxy cuticle, so called because it is made out of a water-repellent substance called cutin.

Detailed explanation-2: -Thick waxy cuticle-the cuticle cuts down water loss in two ways: it acts as a barrier to evaporation and also the shiny surface reflects heat and so lowers the temperature.

Detailed explanation-3: -A waxy layer known as the cuticle covers the leaves of all plant species. The cuticle reduces the rate of water loss from the leaf surface.

Detailed explanation-4: -The thick cuticle on leaves reduces water loss. Some plants have stomata only on the lower side. Some of the plants have sunken stomata to reduce water loss.

There is 1 question to complete.