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2. Microorganisms : Friend And Foe Class 8 Science Solutions English Medium-Text Book Exercise
2. Microorganisms : Friend And Foe Class 8 Science Solutions English Medium-Text Book Exercise Get chapter-wise detailed explanations, step-by-step answers, important questions and exam-ready study material in Hindi and English medium.
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2. Microorganisms : Friend And Foe Class 8 Science Solutions English Medium-Text Book Exercise
NCERT Solutions for Class 8 are specially prepared according to the latest CBSE syllabus (2026-27) to help students understand every concept clearly. These solutions provide step-by-step explanations, accurate answers, and exam-oriented guidance for all chapters. Class 8 students can improve their problem-solving skills, strengthen conceptual understanding, and prepare confidently for school as well as board examinations. All questions are solved in a simple and easy-to-understand language for both Hindi and English medium learners.
2. Microorganisms : Friend And Foe Class 8 Science Solutions English Medium-Text Book Exercise
NCERT Solutions Class 8 Science English Medium
2. Microorganisms : Friend And Foe
Topic: Text Book Exercise
Text Book Exercise
Que: Can microorganisms be seen with the naked eye? If not, how can they be seen?
Ans: No, we cannot see microorganisms with unaided eyes. They can be seen with the help of a microscope.
Que: What are the major groups of microorganisms?
Ans: bacteria, protozoa, fungi and some algae are the major group of microorganism.
Que: Name the microorganisms which can fix atmospheric nitrogen in the soil.
Ans: These are Rhizobium, Azobacter, blue green algae.
Que: Write 10 lines on the usefulness of microorganisms in our lives.
Ans: Microorganisms are useful to us in many ways. For example:
- Bacteria like Lactobacillus convert milk into curd.
- Bacteria are also involved in the making of cheese.
- Acetobacter aceti is used for producing acetic acid from alcohol.
- Yeast is used in the commercial production of alcohol, wine and bakery products.
- Some specific microorganisms are helpful in manufacturing of antibiotics.
- Microorganisms act as cleansing agents and decompose the waste products into manure.
- Dead or weakened microbes are used in the preparation of vaccines.
- Some bacteria fix atmospheric nitrogen and increase soil fertility.
- Algae, yeast, fungi or bacteria may be used as an ingredient or a substitute for protein-rich foods that are suitable for human or animal consumption.
- Some microorganisms are taken as probiotics, that are believed to provide health benefits when consumed.
Que: Write a short paragraph on the harms caused by microorganisms.
Ans:
(i) Many infectious or communicable disease like tuberculosis, cholera, plague, flue, chicken pox are caused by microorganism.
(ii) Many protozoa cause disease like malaria, filaria, amoebiasis etc.
(iii) Funguses are causative organisms of many skin diseases.
(iv) Dengue and polio like dangerous diseases are caused by virus like microorganisms.
(v) Several microorganisms harm crops like vegetables, fruits and grains.
Que: What are antibiotics? What precautions must be taken while taking antibiotics?
Ans: The medicines which kill or stop the growth of the disease-causing microorganisms. Such medicines are called antibiotics.
Precautions:
(i) It must be taken under advised of a qualified doctor.
(ii) Body may develop resistance when we take it unnecessary.
The course of antibiotic must be completed.
All Topics From 2. Microorganisms : Friend And Foe
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1. Chapter Review 2. Text Book Exercise 3. Text Book Exercise 4. Additional Questions With Solutions 5. Additional Questions With SolutionsNCERT Solutions Class 8 Hindi and English Medium – Complete Study Material
NCERT Solutions Class 8 students ke liye specially CBSE latest syllabus (2026-27) ke according prepare kiye gaye hain. Yeh solutions Hindi aur English medium dono ke liye available hain, jisse har student apni language preference ke hisaab se padh sakta hai. Har chapter ke sabhi prashnon ke step-by-step answers diye gaye hain jo concept clarity aur exam preparation me madad karte hain.
Chapter-Wise Detailed Explanations
Class 8 ke liye diye gaye Chapter Wise NCERT Solutions me har question ka detailed aur easy explanation diya gaya hai. Chahe aap CBSE Board Exam Preparation kar rahe ho ya school test ke liye revise kar rahe ho, yeh solutions aapko complete understanding denge. Har answer simple language me likha gaya hai jisse students concepts ko easily grasp kar saken.
Hindi and English Medium Support
Students Hindi aur English medium dono me NCERT Book Solutions Class 8 access kar sakte hain. Yeh dual language support un students ke liye helpful hai jo apni regional language me better samajhna chahte hain. Sabhi answers CBSE Latest Syllabus 2026-27 ke anusaar update kiye gaye hain.
Important Features of NCERT Solutions
- Class 8 NCERT Solutions PDF
- CBSE Class 8 Study Material
- NCERT Book Questions and Answers
- Exam Oriented Important Questions
- Step-by-Step Detailed Solutions
- Concept Clarity and Revision Notes
Why Students Should Use NCERT Solutions?
Aaj ke competitive environment me sirf textbook padhna kaafi nahi hota. NCERT Solutions for Class 8 students ko practice aur conceptual understanding dono provide karte hain. Yeh solutions unhe exam pattern samajhne, frequently asked questions practice karne aur high score achieve karne me madad karte hain. Regular practice se students apne weak topics ko improve kar sakte hain.
Best Resource for Exam Preparation
Agar aap Class 8 CBSE Preparation ke liye ek trusted aur reliable source dhundh rahe hain, to yeh NCERT Solutions perfect choice hain. Yeh study material school exams, unit tests, half-yearly aur annual exams ke liye equally useful hai. Har chapter ke answers accurate, verified aur student-friendly format me diye gaye hain.
Isliye agar aap NCERT Solutions Class 8 Hindi and English Medium search kar rahe hain, to yahan aapko complete chapter-wise solutions milenge jo aapki academic journey ko strong aur confident banayenge.