Question

Define the term tissue. Differentiate between simple and permanent tissues in plants. Name the tissue which

a) Allows aquatic plants to float b) provides flexibility to plants.​

Answer 1

Answer:

• A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function. Organs are then formed by the functional grouping together of multiple tissues.

• The primary difference between simple and complex tissue is, simple tissue is made up of only one type of cell whereas complex tissue is formed of many types of cells. A simple tissue in animals is known as Epithelium whereas in plants it is known as Epidermis.

• The tissue which allows aquatic plants to float is Aerenchyma. Basically aerenchyma is parenchyma tissue in aquatic plants. The cells of aerenchyma make a network which has wide air spaces or air cavities for gaseous exchange.

• Collenchyma cells in vascular plants support growing parts due to flexible cellulosic walls, which lignify once growth has ceased.

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Answer 2

Answer:

Tissue is a cellular organizational level between cells and a complete organ.

Simple tissue - Simple permanent tissue is composed of a single type of cells . Simple permanent tissues are located virtually in every part of the plant

Permanent tissue - complex permanent tissue is composed of multiple types of cells . Permanent tissues are mostly located in the vascular regions of the plant.

Explanation:

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