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Xylem: Complex Permanent Tissues Video Lecture - NEET

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1. What are complex permanent tissues?
Ans. Complex permanent tissues are specialized tissues in plants that are composed of more than one type of cell. These tissues are responsible for providing support, strength, and conduction of water and nutrients throughout the plant.
2. What are the types of complex permanent tissues?
Ans. There are two types of complex permanent tissues: a) Xylem: Xylem is responsible for the conduction of water and minerals from the roots to the rest of the plant. It is composed of tracheids, vessels, xylem fibers, and xylem parenchyma cells. b) Phloem: Phloem is responsible for the conduction of organic substances, such as sugars, from the leaves to other parts of the plant. It is composed of sieve tubes, companion cells, phloem fibers, and phloem parenchyma cells.
3. What is the function of xylem?
Ans. The main function of xylem is the transportation of water and minerals from the roots to the leaves of the plant. It also provides mechanical support to the plant and helps in maintaining its shape and structure.
4. What is the function of phloem?
Ans. The main function of phloem is the transportation of organic substances, such as sugars, from the leaves to other parts of the plant. It plays a crucial role in the process of photosynthesis and provides nutrients to various plant tissues.
5. How are complex permanent tissues different from simple permanent tissues?
Ans. Complex permanent tissues are composed of more than one type of cell, whereas simple permanent tissues are composed of only one type of cell. Complex permanent tissues have specific functions, such as conduction of water and nutrients, while simple permanent tissues have diverse functions, such as storage, protection, and photosynthesis.
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