Question
Solving time: 2 mins
Which of the following statements are true/false?
(I) Trimerous condition of floral whorls is characteristic of dicotyledons.
(II) Adiantum is also called walking fern.
(III) In gymnosperms, the vascular system consists of xylem without vessels and phloem with companion cells.
(IV) Riccia and Marchantia are liverworts.
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Text solutionVerified
Trimerous condition of floral whorls is characteristic of monocotyledons. They have three floral parts in each whorl. The vascular system of gymnosperms is made up of xylem with tracheids, parenchyma, and rays. vessels are however present in Gnetum, Ephedra having evolved from pitted tracheids. The phloem is made up of sieve cells but companion cells are absent.
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Question Text | Which of the following statements are true/false? (I) Trimerous condition of floral whorls is characteristic of dicotyledons. (II) Adiantum is also called walking fern. (III) In gymnosperms, the vascular system consists of xylem without vessels and phloem with companion cells. (IV) Riccia and Marchantia are liverworts. |
Topic | Morphology of Flowering Plants |
Subject | Biology |
Class | Class 11 |
Answer Type | Text solution:1 |
Upvotes | 93 |