MEDIUM
Earn 100
How is secondary phloem formed?
Important Questions on Histology and Anatomy of Flowering Plants
MEDIUM
Identify the incorrect statement.
MEDIUM
Secondary xylem and phloem in dicot stem are produced by
EASY
Identify the wrong statement in the context of heartwood.
MEDIUM
Which of the statements given below is not true about the formation of annual rings in trees?
EASY
The vascular cambium normally gives rise to
EASY
Functional xylem of dicot tree is ___ .
MEDIUM
Plants having little or no secondary growth are
EASY
Assertion The peripheral region of the secondary xylem is lighter in colour and is known as the sapwood (alburnum).
Reason It is involved in the conduction of water and minerals from root to leaf.
The correct answer is:
EASY
Which among the following is not dedifferentiated?
EASY
Which of the following are the part of the Periderm?
I. Duramen
II. Phellogen
III. Phellem
IV. Phelloderm
V. Alburnum
The correct answer is
MEDIUM
What is the difference between phellem and phelloderm.
MEDIUM
Assertion (A): The primary and secondary phloem is gradually crushed in the secondary growth of the dicot stem.
Reason (R): The secondary xylem is produced more than the secondary phloem.
The correct option among the following is:
EASY
Formation of interfascicular cambium and cork cambium from parenchyma is phenomenon of
MEDIUM
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
MEDIUM
Select the correct pair.
EASY
Vascular tissue having abundant vessels and fibers is
EASY
The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is
MEDIUM
Cambium activity is
MEDIUM
Why is vascular cambium in a dicot stem said to be partly primary and partly secondary in origin?
HARD
Vascular cambium gives rise to
