Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2015BotanyAnatomy of Flowering PlantsActual

Read the different components from (i) to (iv) in the list given below and tell the correct order of the components with reference to their arrangement from the outer side to the inner side in a woody dicot stem : (i) Secondary cortex (ii) Wood (iii) Secondary phloem (iv) Phellem

Options

  1. A(i), (ii), (iv), (iii)
  2. B(iv), (i), (iii), (ii)
  3. C(iv), (iii), (i), (ii)
  4. D(iii), (iv), (ii), (i)

Correct answer

B. (iv), (i), (iii), (ii)

Step-by-step solution

Phellogen cuts off cells on both sides. The outer cells differentiate into cork or phellem while the inner cells differentiate into secondary cortex or phelloderm. The cambial ring becomes active and begins to cut off new cells, both towards the inner and the outer sides. The cells cut off towards pith, mature into secondary xylem (wood) and the cells cut off towards periphery mature into secondary phloem (bast). The sequence of different components of woody dicot stem from the outer side to the inner side is

Practice Anatomy of Flowering Plants on Quantrex Academy →

More from Anatomy of Flowering Plants

The main function of bulliform cells in grasses is : 2026Match List I with List II : List I List II A. Conjunctive tissue I. Specialised cells in the vicinity of guard cells B. Casparian strips II. Endodermal cells rich in starch C. Subs 2026Find the statement that is NOT correct with regard to the structure of monocot stem. 2025Which of the following simple tissues are commonly found in the fruit walls of nuts and pulp of pear? 2024Given below are two statements: Statement I: In a dicotyledonous leaf, the adaxial epidermis generally bears more stomata than the abaxial epidermis. Statement II: In a dicotyledon 2024Given below are two statements: Statement I : Parenchyma is living but collenchyma is dead tissue. Statement II : Gymnosperms lack xylem vessels but presence of xylem vessels is th 2024Bulliform cells are responsible for 2024Formation of interfascicular cambium from fully developed parenchyma cells is an example for 2024 Full Anatomy of Flowering Plants list All NEET PYQs