Morphology Of Flowering Plants Root Stem And Leaf Question 309
Question: Read the assertion and reason carefully:
Assertion : Flower of racemose inflorescence are pollinated by insects. Reason : In Racemose head infloresence, the florets are arranged in a centripetal fashion.
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:
In racemose head, the main axis or receptacle is suppressed, becoming almost flat.
It bears a mass of small sessile flowers (florets) on its surface, with one or more whorls of bracts at the base forming an involucre.
The florets are arranged in a centripetal fashion, i.e., younger towards the centre and older towards the periphery.
The advantages of this kind of inflorescence are that the head as a whole becomes more showy and attractive and the florets being close together, one or a few insects can pollinate most of them within a short time.
BETA
