Question

Passage cell is always located opposite to

• A. Protoxylem elements
• B. Metaxylem elements
• C. Phloem
• D. Pith

Answer 1

Answer: (A)

Protoxylem elements

• Passage cells are also known as transfusion cells.
• They are thin-walled cells which lack suberin and are found in the endodermis (is the central innermost layer of the cortex) of vascular plants (plants which consist of vascular tissues i.e, xylem and phloem).
• They are located opposite the protoxylem strands or elements.
• They are found in the endodermis of dicots.
• So, the correct answer is 'Protoxylem elements'.