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Q106 (CDS-I/2014) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Plant anatomy physiology Answer Verified

Which of the following does not possess a specialized conducting tissue for transport of water and other substances in plants?

Result
Your answer: —  Â·  Correct: A
Explanation

Specialized conducting tissues, namely xylem and phloem, are the hallmark of vascular plants (tracheophytes). These tissues facilitate the transport of water, minerals, and photosynthetic products throughout the plant body [4]. Bryophytes, which include liverworts, hornworts, and mosses, are defined as non-vascular plants because they lack these specialized structures [2]. Marchantia is a genus of liverworts and thus does not possess true vascular tissue [2]. In contrast, Marsilea and ferns are pteridophytes, which are vascular cryptogams that possess well-differentiated vascular bundles [1]. Cycas is a gymnosperm, a group of advanced plants that also utilize specialized vascular tissues for internal transport. Therefore, among the given options, only Marchantia lacks specialized conducting tissue.

Sources

  1. [2] Science , class X (NCERT 2025 ed.) > Chapter 5: Life Processes > 5.4.2 Transportation in Plants > p. 94
  2. [4] Science , class X (NCERT 2025 ed.) > Chapter 5: Life Processes > What you have learnt > p. 99
  3. [1] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 9: Indian Biodiversity Diverse Landscape > 6. Pteridophytes > p. 157
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