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

Simple cuboidal epithelium and columnar epithelium, Q. How different is the...

Q. How different is the simple cuboidal epithelium from the columnar epithelium? Where can these epithelia are found in the human body? The simple cuboidal epithelium is made o

Male reproductive system of frog, Male reproductive system of frog: i) ...

Male reproductive system of frog: i) Testis : a) There are a pair of testis which are attached to the kidneys. b) They are oval and yellow in colour. c) Inside the testis th

How can bacteria produce human insulin, Q. How can bacteria produce human i...

Q. How can bacteria produce human insulin on an industrial scale? What are the other forms of insulin made available by the pharmaceutical industry? Bacteria don't naturally sy

Pulmonary artery diastolic pressure, PADP may be determined by measuring th...

PADP may be determined by measuring the end diastolic velocity of PADP = 4 V 2 Pulmonary regurgitant signal and applying the following formula V is  the end diastolic veloci

Genomic dna from the sea urchin, Eric Davidson isolated and compared the se...

Eric Davidson isolated and compared the sequences of mRNA transcripts and genomic DNA from the sea urchin. Which of the following is a true statement regarding his findings? A.

Estimation of burn area, Estimation of Burn Area: The  estimation of  ...

Estimation of Burn Area: The  estimation of  the  extent  of  burn area expressed as  the  percentage  of  the surface  area  of  the skin  burnt to  the  total body  surface

Gregor mendel''s law of independent segregation, Gregor Mendel's Law of Ind...

Gregor Mendel's Law of Independent Segregation referred to which of the following genetic elements? A. Alleles of two genes that reside on the similar chromosome B. Alleles

Microbiology, control of microorganisms by chemical method.

control of microorganisms by chemical method.

Nursing process in infective endocarditis, Nursing Process Nursing Ass...

Nursing Process Nursing Assessment Health history-Past-valvular, congenital or syphilitic cardiac disease/cardiac surgery. Habits-IV drug abuse. Assess the signs an

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