HORTICULTURE

HORTICULTURE SCIENCE

PLANT BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
a waxy or fatty and watertight layer on the outside of leaves and stems; prevents the cells from drying out in arid environments
A
cuticle
B
thigmotropism
C
stomata (stoma)
D
None of the above
Explanation: 

Detailed explanation-1: -Answer: The waxy covering on plant leaves, young stems, and fruit is called the “cuticle". It is composed of cutin, a wax-like material produced by the plant that is chemically a hydroxy fatty acid. The purpose of this covering is to help the plant retain water.

Detailed explanation-2: -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. Other leaves may have small hairs (trichomes) on the leaf surface.

Detailed explanation-3: -Cuticle is the answer. Cuticle is a waxy covering that can be found on essentially all exposed surfaces: leaves, stems, flowers, fruits but not roots. This waxy surface inhibits the loss of water. As stems grow, corky bark tissue replaces cuticle in function.

Detailed explanation-4: -Cutin is a waxy and water-repellent substance that is present in the aerial parts of the plant and is responsible for protecting the underlying layers by preventing water loss through transpiration. Thus the outer wall of the epidermis in stems and leaves has a waxy covering made up of cutin.

Detailed explanation-5: -The outer surface of the epidermis has a waxy coat called cuticle covering it. It prevents the loss of water.

There is 1 question to complete.