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Standard IX
Biology
Inflorescence
Question

Which of the following is true?
  1. Umbel is a racemose inflorescence where all stalked flower aggregate on the flat receptacle.
  2. Raceme is a racemose inflorescence having main axis shortened & flower born acropetally.
  3. Spadix is a racemose inflorescence having pendulous spike with main axis much flattened.
  4. Spike is a racemose inflorescence having sessile flowers.

A
Spike is a racemose inflorescence having sessile flowers.
B
Umbel is a racemose inflorescence where all stalked flower aggregate on the flat receptacle.
C
Raceme is a racemose inflorescence having main axis shortened & flower born acropetally.
D
Spadix is a racemose inflorescence having pendulous spike with main axis much flattened.
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Solution
Verified by Toppr

The correct option is D Spike is a racemose inflorescence having sessile flowers.
Spike is a racemose inflorescence that bears sessile flowers in an acropetal fashion e.g., chaff flower (Achyranthes), bottle brush (Callistemon), Adhatoda vasica, Amaranthus.

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Q1

Statement 1: In racemose inflorescence, the flowers at the apex are younger.

Statement 2: In racemose inflorescence, the flower growth is acropetal.


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Q2
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Q3
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Q5
An inflorescence which is not racemose and appears like a flower is?
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