- A Phloem
- B Xylem
- C Both xylem and phloem
- D Cell membrane only
Correct answer: B. Xylem
Explanation: Xylem transports water and minerals from roots to leaves (upward). Phloem transports sugars (both up and down).
Concept context
Water and mineral absorption, the ascent of sap, transpiration, and phloem transport via the pressure flow hypothesis.