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

Discuss about brain, Brain Brain is a part of central nervous system wh...

Brain Brain is a part of central nervous system which lies in the skull. Source: Sears and Windwood, Anatomy and Physiology for Nurses The different parts of the bra

Why the ph of urine can be quite variable, The ph of urine can be quite var...

The ph of urine can be quite variable. Why? Why is bromothymol blue used as a ph indicator instead of phenal red when titrating blood?

Explain keshan disease caused by selenium deficiency, Explain Keshan diseas...

Explain Keshan disease caused by Selenium deficiency? It is a cardiomyopathy (disease of the myocardium, involving heart muscle) that was identified to affect children and wome

Define recommended dietary allowance for riboflavin (rda), Define Recommend...

Define Recommended Dietary Allowance for riboflavin (RDA)? Several nutritional and physiological factors govern riboflavin requirements. Negative nitrogen balance reduces rib

Plant classfication, why obelia is considered to be of special interest in ...

why obelia is considered to be of special interest in zoology as an animal showing an intermediate grade of organisation

History of viruses, In the early days of microbiology, the disease producin...

In the early days of microbiology, the disease producing submicroscopic agents were termed as 'filterable viruses' because of their ability to pass through conventional filters whi

Physical stress - temperature, Physical Stress - Temperature We are mo...

Physical Stress - Temperature We are most familiar with the plants and other organisms that live at temperatures close to the temperature range in which we are adapted to live

Excretion in non-chordates, Excretion in Non-Chordates Excretion as de...

Excretion in Non-Chordates Excretion as described under Introduction of this unit refers to removal of the waste products of metabolism - carbon dioxide (CO 2 ) and water rele

Percussion - criteria for endosteal implants, Percussion - criteria for end...

Percussion - criteria for endosteal implants? It is neither an indicator of clinical health nor of rigid fixation. Ringing sound that occurs on percussion corresponds to the pr

Nutrient requirement during angina pectoris, Q. Nutrient requirement during...

Q. Nutrient requirement during angina pectoris? The nutrient requirement here is the same as discussed earlier, however, to sum up it can be said that we need to restrict calor

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