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NEET 2012
Exam
NEET
Year
2012
Subject
Botany
Chapter
Anatomy of Flowering Plants

NEET 2012 · Botany · Anatomy of Flowering Plants

Companion cells are closely associated with

Companion cells are closely associated with

Options

  1. Asieve elements
  2. Bvessel elements
  3. Ctrichomes
  4. Dguard cells

Correct answer

A. sieve elements

Step-by-step solution

Companion cells are characteristic elements of phloem tissue associated with the sieve tubes (sieve elements) in the angiosperms. The siever tubes and companion cells are related ontogenically as they develop from the same mother cell. The companion cells and sieve tubes maintain close cytoplasmic connections through plasmodesmata.
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