Multiple choice

Which component of phloem tissue has tubular cells with perforated walls?

  1. Sieve tubes

  2. Companion cells

  3. Phloem parenchyma

  4. Phloem fibers

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A Correct answer
Explanation

Sieve tubes are the main conducting elements of phloem. They consist of long, tubular cells with end walls called sieve plates that are perforated with pores to allow the flow of nutrients.

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