Question

Statement A: The process of phloem loading is an active process. Statement B: The process of phloem unloading is a passive process.

• A. Both the statements are true
• B. Both the statements are false
• C. Statement A is true but Statement B is false
• D. Statement B is true but Statement A is false

Answer 1

Answer:

C. Statement A is true but Statement B is false

• Both the process of sucrose loading and unloading in the phloem tissue is an active process.

• It is facilitated by the process of osmosis taking place in the adjacent xylem tissue.

• It develops the water potential gradient which aids the mass movement of sucrose.