Consider the following statements regarding plant transport tissues: 1. Xylem tissue is responsible for the unidirectional transport of water and dissolved mineral nutrients from roots to aerial parts. 2. Phloem tissue transports organic food materials such as sugars bidirectionally between sources and sinks. Which of the statements given above is/are correct?

💡 Solution & Explanation

Xylem utilizes tracheids and vessel elements to conduct water upward from roots driven by transpiration pull and root pressure, while phloem uses sieve tube elements to distribute photosynthetic sugars bidirectionally to growing regions and storage organs. Both complex tissues work in coordination to sustain vascular plant growth. Ernst Munch proposed the pressure flow hypothesis for phloem translocation.