Correct Option
The correct option is (c).
Explanation
Plants possess a specialized vascular system for the transport of essential substances. The xylem tissue is responsible for the unidirectional transport of water and dissolved minerals from the roots to the aerial parts of the plant, while the stem serves as the structural link between the roots and the leaves.
Statement-wise Analysis
- Statement 1 is Correct: Water moves up the stem through narrow, tube-like structures called xylem vessels and tracheids. These tissues form a continuous network of channels connecting roots to the leaves. The movement is driven by physical forces such as capillary action and transpirational pull.
- Statement 2 is Incorrect: Minerals do not remain stationary in the roots. Roots absorb minerals from the soil in ionic form. These minerals are dissolved in water and are transported upward along with the water stream through the xylem to the stem, leaves, and growing regions of the plant.
- Statement 3 is Correct: One of the primary functions of the stem is conduction. It conducts water and minerals absorbed by the roots to the leaves, flowers, and fruits. It also transports food manufactured in the leaves to other parts of the plant (via phloem).
Key Takeaway: The xylem acts as the primary transport pathway for both water and dissolved minerals, moving them from the root system upward to the stem and leaves.