Biological Classification
Discipline Courses-I
Semester-I
Paper: Phycology and Microbiology
Unit-I
Lesson: Biological Classification
Lesson Developer: Ishwar Singh
College/Department: Hansraj College, University of Delhi
Institute of Lifelong Learning, University of Delhi
, Biological Classification
Table of Contents
Chapter: Biological Classification
Introduction
Nomenclature and Taxonomic Hierarchy
Five kingdom classification
Kingdom Monera
Kingdom Protista
Kingdom Plantae
Kingdom Fungi
Kingdom Animalia
Three domain classification
Summary
Glossary
Exercise/ Practice
References/ Bibliography/ Further Reading
Institute of Lifelong Learning, University of Delhi 1
, Biological Classification
Introduction
In our daily life we come across several animals, plants and microbes, which have been
named in order to understand their importance and to communicate about them. However,
this communication about organisms becomes difficult in an area or a region where they do
not occur or if they occur but are recognized by some other name. Further, organic
evolution has caused great number of biodiversity adding another problem to biologists to
remember, and to identify new ones. All these factors contribute to a need of developing a
system, called taxonomy.
Taxonomy is the branch of science dealing with naming, grouping of organisms on the basis
of the degree of similarity and arranging them in an order on the basis of their evolutionary
relationship. Therefore in other words, taxonomy is related to nomenclature,
classification and phylogeny of organisms. Taxonomy unlike natural sciences such as
Botany, Zoology, Physics, Chemistry, etc. is considered as a synthetic (man made) and
multidisciplinary science. It owes its progress on the advancement made in other branches
of sciences like morphology, histology, physiology, cell biology, biochemistry, genetics,
molecular biology, computational biology etc.
Nomenclature and Taxonomic Hierarchy
Figure: Carolus Linnaeus (1707-78)
Institute of Lifelong Learning, University of Delhi 2
Discipline Courses-I
Semester-I
Paper: Phycology and Microbiology
Unit-I
Lesson: Biological Classification
Lesson Developer: Ishwar Singh
College/Department: Hansraj College, University of Delhi
Institute of Lifelong Learning, University of Delhi
, Biological Classification
Table of Contents
Chapter: Biological Classification
Introduction
Nomenclature and Taxonomic Hierarchy
Five kingdom classification
Kingdom Monera
Kingdom Protista
Kingdom Plantae
Kingdom Fungi
Kingdom Animalia
Three domain classification
Summary
Glossary
Exercise/ Practice
References/ Bibliography/ Further Reading
Institute of Lifelong Learning, University of Delhi 1
, Biological Classification
Introduction
In our daily life we come across several animals, plants and microbes, which have been
named in order to understand their importance and to communicate about them. However,
this communication about organisms becomes difficult in an area or a region where they do
not occur or if they occur but are recognized by some other name. Further, organic
evolution has caused great number of biodiversity adding another problem to biologists to
remember, and to identify new ones. All these factors contribute to a need of developing a
system, called taxonomy.
Taxonomy is the branch of science dealing with naming, grouping of organisms on the basis
of the degree of similarity and arranging them in an order on the basis of their evolutionary
relationship. Therefore in other words, taxonomy is related to nomenclature,
classification and phylogeny of organisms. Taxonomy unlike natural sciences such as
Botany, Zoology, Physics, Chemistry, etc. is considered as a synthetic (man made) and
multidisciplinary science. It owes its progress on the advancement made in other branches
of sciences like morphology, histology, physiology, cell biology, biochemistry, genetics,
molecular biology, computational biology etc.
Nomenclature and Taxonomic Hierarchy
Figure: Carolus Linnaeus (1707-78)
Institute of Lifelong Learning, University of Delhi 2
