CHILD DEVELOPMENT PEDAGOGY

GROWTH DEVELOPMENT CHILD

GROWTH AND DEVELOPMENT

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 tiny extensions or projections from the outer surface of plant roots. The outer layer of a plant cell is called epidermis, or epidermal cells; therefore, root hairs are considered epidermal cells.

Detailed explanation-4: -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.

Detailed explanation-5: -Trichomes are the epidermal hairs that grow on the plant’s stem. Unicellular trichomes, which look like hairs, can be seen in dicot stems. It is not present in monocot stems. When insects come into touch with the plant leaves, some trichomes produce mucilage that traps them.

There is 1 question to complete.