Morphology Of Flowering Plants Root Stem And Leaf Question 322

Question: Read the assertion and reason carefully:

Assertion : In cyathium, several male flowers surround a single female flower. Reason : The involucre is nectariferous.

Options:

A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C) If the assertion is true but the reason is false

D) If both the assertion and reason are false

Show Answer

Answer:

Correct Answer: B

Solution:

Explanation: Cyathium is a special kind of inflorescence found in Euphorbia, i.e., Poinsetia and Euphorbia.

In cyathium there is a cup shaped involucre, often provided with nectar secreting glands.

The involucre encloses a single female flower in the centre, seated on a comparatively long stalk and a number of male flowers around this, seated on short slender stalks.