Name: Tissue - The Second Level of Organization
Uploaded: 2019-07-19
Duration: 12 min 26 s
Description: All the blood cells were invited to RBC's birthday party, except the alveolar cells. Why? Maybe because the alveolar cell belongs to some other tissue? Explore

Question

Why are xylem and phloem called complex tissues? How are they different from one other?

Accepted Answer

The tissues which contain more than one type of cells, which coordinate to perform a common function are called complex tissues. The xylem and phloem are called complex tissue because the tissues of xylem and phloem are made up of different cells, but they perform a common function. Xylem is made of xylem tracheids, vessels, fibres and parenchyma cells. Phloem is made of sieve tubes, companion cells, phloem fibre and parenchyma cells.

Characteristic Xylem Phloem

Type of cells 1) It consists of tracheids, vessels, xylem parenchyma and xylem fibres. 1) It consists of sieve tubes, companion cells, phloem parenchyma and fibres.

Function 2) It conducts water and minerals from roots to leaves. 2) It transports food from leaves to other parts of the plant body.

Why are xylem and phloem called complex tissues? How are they different from one other?

Important Questions on Tissues

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