NEET2012BotanyAnatomy of Flowering PlantsActual
Companion cells are closely associated with
Options
- Asieve elements
- Bvessel elements
- Ctrichomes
- 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.