NTA Abhyas NEET2020BotanyAnatomy of Flowering PlantsPractice
Passage cells are thin walled cells found in
Options
- APhloem elements that serve as entry points for substance for transport to other plant parts
- BTesta of seeds to enable the emergence of growing embryonic axis during seed germination
- CThe central region of style through which the pollen tube grows towards the ovary
- DEndodermis of roots facilitating rapid transport of water from cortex to pericycle
Correct answer
D. Endodermis of roots facilitating rapid transport of water from cortex to pericycle
Step-by-step solution
The innermost layer of the cortex is called endodermis. It comprises a single layer of barrel-shaped parenchyma cells without any intercellular spaces. In roots, thick-walled endodermal cells are interrupted by thin-walled passage cells or transfusion tissue. Passage cells facilitate the transportation of water from cortex to pericycle. The passage cells are thin-walled and are usually located opposite the protoxylem.