Questions and Answers
What is the first step in the uptake of water and mineral salts by the plant?
Uptake of water and mineral salts by the roots.
What is the second step in the movement of water in the plant?
Movement of water to the xylem of the root.
What is the third step in the absorption process of water in plants?
Upward movement of water in the xylem from the roots to the leaves.
Study Notes
Uptake of Water and Mineral Salts by the Plant
- Roots serve as the primary site for absorbing water and essential mineral salts from the soil.
- The process begins with osmosis, where water moves from an area of higher concentration in the soil to a lower concentration in the roots.
- Mineral salts, dissolved in water, are absorbed through root hairs via active transport, ensuring the plant receives necessary nutrients.
Movement of Water to the Xylem
- Once absorbed, water travels through root cells to reach the xylem, specialized tissue responsible for water transport.
- The movement involves capillary action and pressure differences, allowing efficient transfer to the xylem vessels.
Upward Movement of Water in the Xylem
- Water ascends from roots to leaves through the xylem, utilizing cohesion and adhesion properties of water molecules.
- Transpiration, the evaporation of water from leaf surfaces, creates a negative pressure that facilitates upward movement of water and minerals throughout the plant.
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Description
This quiz focuses on the process of how plants absorb water and mineral salts. It covers the three main steps: uptake by the roots, movement to the xylem, and upward transportation to the leaves. Test your understanding of plant biology and water transport mechanisms!
