NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

KINGDOM PLANTAE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Definition:Regions containing actively dividing cells.
A
Vascular
B
Guard Cells
C
Meristem
D
Xylem
Explanation: 

Detailed explanation-1: -The zone where these cells exist is known as meristem. The cells of the meristematic tissue divide actively to form specialized structures such as buds of leaves and flowers, tips of roots and shoots, etc. These cells help to increase the length and girth of the plant.

Detailed explanation-2: -Meristematic tissue consists of actively dividing cells found in root and shoot tips. As growth occurs, meristematic tissue differentiates into permanent tissue, which is categorized as either simple or complex.

Detailed explanation-3: -The meristematic tissues, or simply meristems, are tissues in which the cells remain forever young and divide actively throughout the life of the plant. The different types of meristems are apical, lateral and intercalary meristems.

Detailed explanation-4: -Tissues made up of actively dividing cells are called meristematic tissues or meristems. Meristematic tissues are responsible for plant growth. They are present at the tips of roots, stem and branches. The cells present in these tissues constantly divide to produce new cells.

Detailed explanation-5: -Region of meristematic activity: It is a few millimeters above the root cap. The cells in this region are very small, thin-walled and have dense cytoplasm. Also, the cells divide repeatedly in this region. Region of elongation: Cells proximal to the region of meristematic activity are a part of this region.

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