question_answer

Passage cells are thin-walled cells found in:

A)  Central region of style through which the pollen tube grows towards the ovary

B)  Endodermis of roots facilitating rapid transport of water from cortex to pericycle

C)  Phloem elements that serve as entry points for substances for transport to other plant parts

D)  Testa of seeds to enable emergence of growing embryonic axis during seed germination.