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NTA Abhyas NEET2020BotanyCell - The Unit of LifePractice

Axoneme having 9 + 2 doublet microtubule arrangement is found in

Options

  1. Acilia and flagella
  2. Bcentriole
  3. Ccilia
  4. Dflagella

Correct answer

A. cilia and flagella

Step-by-step solution

Cilia and flagella are extensions that arise from the cell membrane. Flagella are longer than cilia. Both structures are responsible for cell motility. The microscopic features of these two structures are also very similar. The central core is known as axoneme. These show nine pairs of microtubules that are arranged peripherally and one pair of microtubule is also seen in the centre. This is 9 + 2 arrangement. The central tubules are connected to some peripheral tubules by means of a sheath.

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