Secondary Growth in Dicot Stem
Secondary Growth in Dicot Stem: Overview
This Topic covers sub-topics such as Bark, Lenticels, Vascular Cambium, Secondary Growth in Dicot Stem, Hardwood, Periderm, Spring Wood, Medullary Ray, Tyloses, Annual Rings, Interfascicular Cambium, Phellogen, Softwood and, Intrafascicular Cambium
Important Questions on Secondary Growth in Dicot Stem
Phellogen is the outermost layer of the periderm.
The formation of distinct annual rings in stem mainly depends on uniform climatic conditions and formation of unequal phloem and xylem.
What is the significance of secondary growth in stem?
Describe the process of secondary growth in the stem with the help of diagrams.
The secondary growth takes place in the dicot stem by
Fill in the blank with the correct answer from the bracket.
The structures that are extensions of xylem parenchyma cells into vessels is called _____. (tyloses, lenticel, hydahodes)
Secondary xylem and secondary phloem in dicot stem are produced by cork cambium.
Which of the following is the outer layer of the periderm?
Write short note on annual rings.
Differentiate between sapwood and heartwood.
Phellem and phellogen form cambial ring.
The secondary phloem is formed from the vascular cambium.
How is secondary phloem formed?
What are the cells of the vascular cambium that cut off towards the periphery matures into, whether secondary xylem or secondary phloem?
The amount of secondary phloem formed is less than the amount of secondary xylem.
Define secondary phloem.
How can you tell that soft wood is different from the hard wood?
Softwood is the non-porous wood in which 90-95% are tracheids.
