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NTA Abhyas NEET2020BotanyAnatomy of Flowering PlantsPractice

The living component of phloem tissue is

Options

  1. ASieve tube
  2. BCompanion cells
  3. CBast parenchyma
  4. DAll of these

Correct answer

D. All of these

Step-by-step solution

Phloem is the complex tissue used in the transport of organic food materials from leaves to stem and roots in a downward direction. It consists of the following elements: Sieve element (long tube-like cells placed end to end, forming a continuous channel with perforations and hence called sieve tubes), companion cells (thin-walled, more or less elongated cells and which are associated with sieve tubes with a prominent nucleus and are, therefore, living in nature), phloem parenchyma (elongated with rounded ends and

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