Assertion: Avicennia has pneumatophores.Reason: Pneumatophores help th...
In plants such as Avicennia, growing in swampy areas, many roots come out of the ground and grow vertically upwards. Such roots are called pneumatophores which help to get oxygen for respiration. These roots are also known as respiratory roots.
Assertion: Avicennia has pneumatophores.Reason: Pneumatophores help th...
Understanding Avicennia and Pneumatophores
Avicennia, commonly known as mangrove plants, are well-adapted to salty, coastal environments. One of their distinctive features is the presence of pneumatophores.
What are Pneumatophores?
- Pneumatophores are specialized aerial roots that extend above the waterlogged soil.
- These structures are crucial for gas exchange, allowing the plant to absorb oxygen directly from the air.
Assertion: Avicennia has Pneumatophores
- This statement is true. Avicennia species possess pneumatophores which emerge from their root system.
- Their presence is a key adaptation for survival in anaerobic (low oxygen) soil conditions typical of mangrove ecosystems.
Reason: Pneumatophores help the plant to get oxygen for respiration
- This reason is also true. The primary function of pneumatophores is to facilitate oxygen uptake for respiration.
- In waterlogged environments, where soil oxygen levels are low, these structures ensure that the plant can still perform essential metabolic processes.
Correct Explanation of the Assertion
- The reason correctly explains the assertion, as the presence of pneumatophores directly aids in the respiratory needs of Avicennia.
- Therefore, both the assertion and reason are true, and the reason provides a correct explanation for why Avicennia has pneumatophores.
Conclusion
- The answer is option 'A' because both the assertion and reason are true, and the reason accurately explains the assertion regarding the function of pneumatophores in Avicennia species.
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.