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You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will your use to distinguish between the two?
Options
(a) Secondary xylem
(b) econdary phloem
(c) Protoxylem
(d) Cortical cells
Correct Answer:
Protoxylem
Explanation:
Anatomically fairly old dicotyledonous root is distinguished from the discotyledonous stem by position of protoxylem. In dicot root the protoxylem is located near the periphery of the vascular cylinder while in dicot stem the protoxylem is located near the centre of vascular bundle i.e., the xylem is endarch.
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Topics: Structural Organisation In Plants
(243)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning
- Brocas area in human brain related to
- When one element is involved in opening and closing of stomata the other helps
- Dendrites transmit impulses toward the
- Ovary is half-inferior in the flowers of:
Topics: Structural Organisation In Plants (243)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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