Question:

Radial conduction of water takes place by

Updated On: Jul 6, 2022
  • Vessels
  • Vessels and tracheids
  • Phloem
  • Ray parenchyma cells
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The Correct Option is D

Solution and Explanation

Answer (d) Ray parenchyma cells
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Notes on Transport of water and minerals in plants

Concepts Used:

Transport of Water and Minerals in Plants

Transportation is the process of movement of water and minerals to all parts of the plant body. Plants have a specialized system that enables them to distribute water and nutrients throughout their body. They use several processes such as translocation, absorption, storage and utilization of water.

Transportation in Plants:

The water and minerals are transported in plants by two types of conducting tissues:

  • Xylem: The xylem distributes water and dissolved minerals upward through the plant, from the roots to the leaves.
  • Phloem: The phloem carries food downward from the leaves to the roots.

The three modes of transportation:

  • Diffusion: The molecules in this system travel from a high-concentration region to a low-concentration region. This procedure does not necessitate the use of any energy.
  • Facilitated diffusion: With the help of a carrier, usually a protein, the mechanism transports molecules from an area of higher concentration to a region of lower concentration. Because this process does not require any energy, it is referred to as a passive process.
  • Active Transport: With the help of membrane proteins, this mechanism transports molecules from a lower to a higher concentration region. Because it requires ATP to function, this system is referred to as active transport.