Anatomy in relation to taxonomy, Biology

Assignment Help:

Q. Anatomy in relation to taxonomy?

The use of anatomical* characters in taxonomy began with the development of the microscope which provided the biologist a new tool to observe the internal structure of organs and tissues. it was realised that anatomicai characters are just as valuable as morphological ones. All parts of a plant provide numerou5 features which have been used for taxonomic purposes. Some anatomical features are very diagnostic and are commonly used in routine identification. We also know that this subject is of great importance to scientists who are called upon to identify small samples scraps of plant material for particular purposes such as pharrnacogonosist in the determination of the source of a drug, or by a forensic expert who may be able to provide clues to a crime investigation, besides others. These and other similar observations have firmly established the role of anatomy in plant identification and classification.

The leaf is perhaps the most varied organ of the angiosperms and provides many anatomical characters of potential taxonomic significance. Investigation of the anatomy of leaves from plants following these pathways has brought out several significant features associated with the two types. The most distinct character observed in the leaves, is the presence of prominent chlorenchymatous sheath surrounding the vascular bundles in the leaves of plants showing the C4 pathway and them absence in the leaves of plants showing the C, pathway. Thus, the leaf anatomy also provides information about the photosynthetic efficiency of a plant.


Related Discussions:- Anatomy in relation to taxonomy

Define dietary goals in parkinson''s disease, Define Dietary Goals in Parki...

Define Dietary Goals in Parkinson's Disease? The main goals include: - Maintain desirable weight - Promote absorption of anti- Parkinson's drug levodopa - Lessen swall

Define the indications for root-end resection apicoectomy, Define the Indic...

Define the Indications for Root-End Resection Apicoectomy a) Persistent..... "Exactly the SAME of Curettage except the biopsy. b) When the apical portion of the root canal s

What is the formula of the net primary production, Q. What is the formula o...

Q. What is the formula of the net primary production (NPP)? How does NPP relate to the energy pyramids? The Net primary production is the gross primary productivity less the or

Explain the uses of isP in cereal products, Explain the Uses of ISO in Cere...

Explain the Uses of ISO in Cereal products  Cereal products  ISP is sometimes used instead of, or in mixture with isolates and soy flour, in the formulation of milk replac

What do you mean by osseous cavity, Q. What is the osseous cavity where the...

Q. What is the osseous cavity where the pituitary gland is located? The hypophysis or pituitary gland is located in the sella turcica of the sphenoid bone (one of the bones in

Conditions associated with increased need for vitamin a, Define Conditions ...

Define Conditions associated with increased need for Vitamin A? Conditions and populations associated with increased need for vitamin A includes young children  particularly  t

Define major divisions & representing species of gymnosperm, What are the m...

What are the major divisions and representing species of the gymnosperms? This group of plants can be separated into conifers (pine, sequoia, cypress), that have flowers called

Define the genetic growth pattern of infant, Define the genetic growth patt...

Define the genetic growth pattern of infant? It takes 1-3 years for an infant to establish his own genetic growth pattern. Once this figure is established (such as height-for-a

Movement of carbon dioxide into a leaf, a) What process is responsible for ...

a) What process is responsible for the movement of carbon dioxide into a leaf? b) In what conditions might the same process cause oxygen to enter a leaf?   (a) Diffusi

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