Question

Assertion :Thermogenecity in certain plants as asclepiadacea play important role. Reason: Heat released during this phenomenon favours entomophily.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
• C. Assertion is correct but Reason is incorrect.
• D. Both Assertion and Reason are incorrect.

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

This family of plants form a group of perennial herbs, twining shrubs, lianas or rarely trees but notably also contain a significant number of leafless stem succulents. They are remarkable for the complex mechanisms they have developed for pollination, which independently parallel the unrelated Orchidaeceae, especially in the grouping of their pollen into pollinia. The fragrance from the flowers, often called 'carrion', attracts flies. The flies pollinate the flowers. Many new hybrids have been formed due to the unique fertilization method of the flowers. These plants produce heat, which favours entomophily.