NEET BIOLOGY

PLANT PHYSIOLOGY

PLANT GROWTH

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
a hair-forming cell on the epidermis of a plant root
A
Root cap
B
Root hair
C
Waxy layer
D
Apical Maristem
Explanation: 

Detailed explanation-1: -Root hair, or absorbent hairs, are outgrowths of epidermal cells, specialized cells at the tip of a plant root. They are lateral extensions of a single cell and are only rarely branched. They are found in the region of maturation, of the root.

Detailed explanation-2: -Root hairs are essentially the lateral extensions formed by the divisions in the basal root hair cells, visible to the naked eye. They go by the names of rhizoids as well as absorbent hairs.

Detailed explanation-3: -Root hairs are long tubular-shaped outgrowths from root epidermal cells.

Detailed explanation-4: -These structures, named root hairs (RHs) in plants and villi in mammals, numerously stretch into the environment, and extremely enlarge root and intestine surfaces. They are believed to forage for nutrients, and mediate their uptake.

Detailed explanation-5: -Root hairs usually arise as protrusions from the external, lateral walls of epidermal cells, although in a few species they originate from cortical cells one or two layers beneath the epidermis.

There is 1 question to complete.