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

Flagellates - parasitic protozoan, Flagellates - Parasitic Protozoan S...

Flagellates - Parasitic Protozoan Several flagellate protozoa parasitise man and live in the blood stream or tissues of the reticulo-endothelial system. Most significant of th

Define basic function of secretin in the digestive process, Q. Where is it ...

Q. Where is it produced and what is the function of secretin in the digestive process? Secretin is made in the duodenum the chyme acidity causes the duodenum to release this ho

Kuch, how vagina is inserted in cock

how vagina is inserted in cock

Explain what is light microscope - microscopy, Explain what is Light Micros...

Explain what is Light Microscope - Microscopy Modern light microscopes are compound microscopes. Here the magnified image formed by the objective lens is further enlarged by on

Nutritional requirements of fats and oils during pregnancy, Define Nutritio...

Define Nutritional Requirements of Fats and Oils during Pregnancy and Lactation? ICMR (1990) recommends that linoleic acid requirements should be raised to 4.5 en% during pregn

Define requirements of iodine during pregnancy period, Define requirements ...

Define requirements of Iodine during pregnancy period? You would be already aware that maternal iodine deficiency leads to cretinism in the off spring. Hence, the material diet

Biochemical function - essential elements, Biochemical Function - Essential...

Biochemical Function - Essential Elements Elements Mg, Mn, K, Ca and Fe are cofactors for many enzymatic reactions. Fe is carrier of electrons in electron transfer chain. Phos

What is manifest squint, What is Manifest Squint (Heterotropia) Manifes...

What is Manifest Squint (Heterotropia) Manifest squint is a deviation of one eye from the normal position when the fusion reflex is present. The subcategories of manifest squin

biodegrade xenobiotic compounds , Xenobiotic compounds are man-made chemi...

Xenobiotic compounds are man-made chemicals that are present in the environment at unnaturally high concentrations. The xenobiotic compounds are either not produced naturally, o

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