Morphology Of Flowering Plants Root Stem And Leaf Question 519
Question: When secondary growth in thickness is initiated in a dicot root, which of the following happens first
Options:
A) Anticlinal divisions take place so that the cambium becomes circular
B) Cambial initial between xylem and phloem divide
C) Parenchymatous cells between xylem and phloem become meristematic
D) ?Pericycle strands? outside the primary xylem divide
Show Answer
Answer:
Correct Answer: C
Solution:
During secondary growth, the parenchymatous cells below the phloem patches and later on outside the protoxylem groups, become meristematic and cambium like due to which a complete ring of cambium is formed, which cuts off secondary tissues and hence increase in girth or diameter of root occurs.
BETA
