Write a short note on plant tissue
Answers
Explanation:
Plant tissue is a collection of similar cells performing an organized function for the plant. Each plant tissue is specialized for a unique purpose, and can be combined with other tissues to create organs such as leaves, flowers, stems and roots.
Answer:
Explanation:
GENERAL VIEWS:
Plant tissue is a collection of similar cells performing an organized function for the plant. Each plant tissue is specialized for a unique purpose, and can be combined with other tissues to create organs such as leaves, flowers, stems and roots.
FUNCTIONS OF PLANT TISSUES :
Help provide mechanical strength to organs. They help in providing the elasticity and flexibility to the organs. They divide to produce new cells and help in the growth of the plants. They help in various cellular metabolisms like photosynthesis, regeneration, respiration, etc.
MAJOR TYPES OF PLANT TISSUES :
They differentiate into three main tissue types: dermal, vascular, and ground tissue. Each plant organ (roots, stems, leaves) contains all three tissue types: Dermal tissue covers and protects the plant, and controls gas exchange and water absorption (in roots)
Plants have only three tissue types: 1) Dermal; 2) Ground; and 3) Vascular. [A] Dermal tissue covers the outer surface of herbaceous plants. Dermal tissue is composed of epidermal cells, closely packed cells that secrete a waxy cuticle that aids in the prevention of water loss.
[B] Ground tissue of plants includes all tissues that are neither dermal nor vascular. It can be divided into three types based on the nature of the cell walls. Parenchyma cells have thin primary walls and usually remain alive after they become mature.
[C] Vascular tissue transports water, minerals, and sugars to different parts of the plant. Vascular tissue is made of two specialized conducting tissues: xylem and phloem. Xylem tissue transports water and nutrients from the roots to different parts of the plant, and also plays a role in structural support in the stem.
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