Take Class 11 Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

Class XI Biology, Biological Classification

Hema C.
07/11/2020 0 0

The first person to scientifically classify plants and animals was Aristotle.

He classified plants into trees, herbs and shrubs based on simple morphological characters.

He classified animals into two groups, red-blooded and non red-blooded.

Two kingdom classification-

The two kingdom system of classification was given by Carolus Linnaeus.

He divided all organisms into two groups- Kingdom Animalia and Kingdom Plantae. This system only relied on gross morphology and did not take into account other characters such as structure, nature of cell wall, mode of nutrition, habitat, methods of reproduction, evolutionary relationships etc.

Five kingdom classification

Five kingdom classification was given by R.H. Whittaker. He classified all organisms into 5 groups-

Kingdom Monera

Kingdom Protista

Kingdom Fungi

Kingdom Plantae

Kingdom Animalia

The criteria used to classify organisms into five kingdoms are-

1. Cell structure

Based on cell structure, organisms can be divided into two groups, as prokaryotes (do not contain nucleus) and eukaryotes (contain nucleus).

2. Body organization

Based on body organzation, organisms can be classified as single-celled (unicellular) or Multicellular.

Kingdom Monera contains all prokaryotic unicellular organisms and Kingdom Protista contains Unicellular Eukaryotes.

3. Mode of Nutrition

Kingdom Plantae is the only kingdom that contains Autotrophic organisms i.e. organisms that can synthesize their own food from inorganic nutrients. Plants do this by photosynthesis.

Kingdom Monera contains autotrophic organisms that can be photoautotrophs or chemoautotrophs (use chemical reactions to synthesise organic nutrients from inorganic substrates) aand heterotrophs that are can either be parasitic or derive their nutrients from dead organic matter.

Heterotrophs are organisms that can not synthesise their own food and rely on other sources for their nutritional needs e.g. all animals.

4. Cell wall

Nature of cell wall is one of the defining feature of various kingdoms. Kingdom Monera contains organisms that have polyaminogycans in their cell wall, Fungi have chitin, Plantae contain cellulose-based cell wall while Animal cells do not contain a cell wall.

0 Dislike
Follow 1

Please Enter a comment


Other Lessons for You

Calvin cycle ( light independent cycle of photosynthesis)
Easy trick to remember the starting, intermediate and end product. RuBy PaGAl ToPper RuBy - First compound - Ribulose bisphosphate PaGAl - intermediate compound - Phosphoglyceric acid ToPper - End...

NEET: Tips For Medical Aspirants
NEET Exam: 10 chapters in Biology 90 questions Concentrate on only ten chapters in biology that covers almost 90 questions. Five chapters from +1 syllabus and five from +2 syllabus. Chapters...

Ecology on the whole is all about relationship and function of biological things and environment. Primarily ecology has different level of hierarchy for better understanding of its own, which are as follows: Global...

Balaji Kasirajan

0 0

Cardiovascular System
The circulatory system consists of a network of artery, veins and pumping organ called the heart. The additional is the lymphatic system which is discussed separately. The circulatory system essentially...

Animesh R.

1 0

Kingdom protista
The Kingdom Protista consists of eukaryotic protists. Members of this very diverse kingdom are typically unicelluar and less complex in structure than other eukaryotes. In a superficial sense, these organisms...

Looking for Class 11 Tuition ?

Learn from Best Tutors on UrbanPro.

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you

Class 11 Tuition Questions


Looking for Class 11 Tuition Classes?

The best tutors for Class 11 Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class 11 Tuition with the Best Tutors

The best Tutors for Class 11 Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more