Structure of phloem, Biology

Assignment Help:

Structure of Phloem

In this we will explain the structural and functional relationship of phloem and compare it with xylem. The location of phloem with respect to other tissues can be examined by a single transverse section, but to get an idea of their longitudinal route from stem to various branches requires a painstaking study of innumerable serial transverse sections along the height of the plant.

1691_Structure of Phloem.png

Figure: Branching, criss- crossing and remification of vascular bundles in a stem of clematis vitalba (schematic)

Figure shows a schematic drawing envisaged from serial sections. Note the branching, criss-crossing and ramification of vascular bundles. The longitudinal branching and fusion of phloem, particularly at the node show that phloem of one side of a stem can effectively cross over to the opposite side on its longitudinal path.


Related Discussions:- Structure of phloem

Describe splitting of in second heart, Describe Splitting of S 2 ? On...

Describe Splitting of S 2 ? On inspiration: The split widens as both A, and Pi move away from each other with p, moving out more. The negative intrathoracic pressure during

Disorders of lower respiratory tract, DISORDERS OF LOWER RESPIRATORY TRACT:...

DISORDERS OF LOWER RESPIRATORY TRACT: The lower respiratory  tract infections  tend to occur most frequently in young children who have not developed resistance  to infectious

Necrotic enteritis, N e c r otic enteritis It can be designated as ...

N e c r otic enteritis It can be designated as enterotoxaemia of chickens, turkeys and ducks caused by Clostridium perfringens. The toxin released by this spore-bearing a

Initiation codon, Initiation Codon is the codon at which the translation o...

Initiation Codon is the codon at which the translation of a polypeptide chain is initiated. This is generally the first AUG triplet in the mRNA molecule from 5' end, where the rib

Describe the metabolism of lipids, Q. Describe the metabolism of lipids? ...

Q. Describe the metabolism of lipids? Fats are split into fatty acids and glycerol by the enzyme. They are absorbed in small intestine and recombined into fats. It is stored in

Rate of conversion of atmospheric nitrogen into ammonia, The biological con...

The biological conversion of atmospheric nitrogen into ammonia in the group of plants known as legumes (peas, beans lentils and clover etc.) is achieved by the action of soil bacte

Geographic speciation, In almost all animal groups, the mode of speciation ...

In almost all animal groups, the mode of speciation is geographic speciation. It is essential that a population which is a prospective new species is geographically isolated from t

Explain about harvesting autogenous bone grafts, What are the precautions t...

What are the precautions to be taken when harvesting autogenous bone grafts from mandibular symphysis and ramus? When harvesting grafts from the mandibular symphysis region, fo

Describe pulsus paradaxus pulse volume, Describe pulsus paradaxus pulse vol...

Describe pulsus paradaxus pulse volume? Pulsus Paradaxus: Pulse volume becomes smaller in inspiration and larger in expiration. This is an exaggeration of normally occurring ph

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd