Complex Tissue: Xylem
Easybiology
Which xylem element is dead at maturity and primarily responsible for water conduction in angiosperms?
Select the correct option:
Solution
Incorrect! Answer:
Vessels
- Complex Tissue: Xylem is composed of tracheids, vessels, xylem fibers, and xylem parenchyma.
- Xylem Vessels: These are long cylindrical tube-like structures with lignified walls and a large central cavity. Unlike xylem parenchyma, they are dead at maturity (lack protoplasm).
- Evolutionary Feature: Vessels are a characteristic feature of Angiosperms (flowering plants). They function as channels for the efficient upward conduction of water and minerals.
- Others: Companion cells and sieve tube elements are part of phloem (transporting food) and are living components.
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About This Question
- Subject
- biology
- Chapter
- structural organisation in animals and plants
- Topic
- complex tissue: xylem
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Vessels
- Complex Tissue: Xylem is composed of tracheids, vessels, xylem fibers, and xylem parenchyma.
- Xylem Vessels: These are long cylindrical tube-like structures with lignified walls and a large central cavity. Unlike xylem parenchyma, they are dead at maturity (lack protoplasm).
- Evolutionary Feature: Vessels are a characteristic feature of Angiosperms (flowering plants). They function as channels for the efficient upward conduction of water and minerals.
- Others: Companion cells and sieve tube elements are part of phloem (transporting food) and are living components.
This easy difficulty biology question is from the chapter structural organisation in animals and plants, covering the topic of complex tissue: xylem. It appeared in the 2025 exam.
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