State two economically important uses of | Class 11 Biology Chapter Biological Classification, Biological Classification NCERT Solutions

Current NCERT chapter

Academic session 2026-27, Chapter 2 in the current curriculum.

Welcome to the NCERT Solutions for Class 11 Biology - Chapter Biological Classification. This page offers a step-by-step solution to the specific question from Exercise 1, Question 2: State two economically important uses of: (a) Heterotrophic bacteria (b) Archaebacteria. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.

Question 2: State two economically important uses of: (a) Heterotrophic bacteria (b) Archaebacteria
Answer:

(a) Heterotrophic bacteria

(1) Many bacteria like Lactobacillus helps in the production of curd from milk.

(2) They act as decomposers and help in the formation of humus e.g. Pseudomonas.

(3) Many antibiotics are obtained from some species of bacteria like streptomyces, Bacillus etc.

(4) Many soil bacteria help in fixation of atmospheric nitrogen like Rhizobium (Symbiotic), Azotobacter (Free living).

 

(b) Archaebacteria

(1) Methane gas is produced from the dung of ruminants by the methanogens.

(2) Methanogens are also involved in the formation of biogas and sewage treatment.

Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

  • Read the question carefully and focus on the core concept being asked.
  • Reference examples and data from the chapter when answering questions about Biological Classification.
  • Review previous year question papers to get an idea of how such questions may be framed in exams.
  • Practice answering questions within the time limit to improve your speed and accuracy.
  • Discuss your answers with your teachers or peers to get feedback and improve your understanding.

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Comments

  • Awadhesh
  • Nov 01, 2019

Thanku for the study material

  • Leo
  • Oct 20, 2019

Thanku

  • Deepak
  • Aug 29, 2019

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  • davidSlurb
  • Jul 17, 2019

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  • Bob
  • Jul 17, 2019

Both points for archaebacteria are similar

  • Meet parmar
  • Jul 07, 2019

HELPED ME , THANK YOU

  • HeeroHero
  • Jun 30, 2019

Nice to me

  • Raji
  • Jun 24, 2019

Can you give us notes for every lessons of class 11 (cbse)?

  • Digvijay
  • May 24, 2019

Good But Stay main points and some points are confused us ......Nice job for Answers help Thanku

  • the bio world
  • Apr 10, 2019

biology is limitless the more u try find the more u get confused 😂😂😂

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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 2: State two economically important uses of: (a) Heterotrophic bacteria (b) Archaebacteria....

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