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Chapters
1: Reproduction in Organisms
2: Sexual Reproduction in Flowering Plants
3: Human Reproduction
4: Reproductive Health
UNIT VII : GENETICS AND EVOLUTION
5: Principles of Inheritance and Variation
6: Molecular Basis of Inheritance
7: Evolution
UNIT IX : BIOTECHNOLOGY
▶ 8: Human Health and Disease
9: Strategies for Enhancement in Food Production
10: Microbes in Human Welfare
UNIT IX : BIOLOGY IN HUMAN WELFARE
11: Biotechnology : Principles and Processes
12: Biotechnology and its Applications
UNIT X : ECOLOGY
13: Organisms and Populations
Chapter 14: Ecosystem
Chapter 15: Biodiversity and Conservation
Chapter 16: Environmental Issues
![NCERT solutions for बायोलॉजी पार्ट 1 अँड 2 [इंग्रजी] इयत्ता १२ chapter 8 - Human Health and Disease - Shaalaa.com](/images/biology-part-1-and-2-english-class-12_6:b1f8befaad564f848198c61748124f91.jpg "NCERT solutions for बायोलॉजी पार्ट 1 अँड 2 [इंग्रजी] इयत्ता १२ chapter 8 - Human Health and Disease")
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Solutions for Chapter 8: Human Health and Disease
Below listed, you can find solutions for Chapter 8 of CBSE, Karnataka Board PUC NCERT for बायोलॉजी पार्ट 1 अँड 2 [इंग्रजी] इयत्ता १२.
NCERT solutions for बायोलॉजी पार्ट 1 अँड 2 [इंग्रजी] इयत्ता १२ 8 Human Health and Disease EXERCISES [Pages 159 - 160]
Bacteria cannot be seen with the naked eyes, but these can be seen with the help of a microscope. If you have to carry a sample from your home to your biology laboratory to demonstrate the presence of microbes with the help of a microscope, which sample would you carry and why?
Give examples to prove that microbes release gases during metabolism.
In which food would you find lactic acid bacteria? Mention some of their useful applications.
Name some traditional Indian foods made of wheat, rice and Bengal gram (or their products) which involve use of microbes.
In which way have microbes played a major role in controlling diseases caused by harmful bacteria?
Name any two species of fungus, which are used in the production of the antibiotics.
What is sewage?
In which way can sewage be harmful to us?
What is the key difference between primary and secondary sewage treatment?
Do you think microbes can also be used as a source of energy? If yes, how?
Microbes can be used to decrease the use of chemical fertilisers and pesticides. Explain how this can be accomplished.
Three water samples namely river water, untreated sewage water and secondary effluent discharged from a sewage treatment plant were subjected to BOD test. The samples were labelled A, B and C; but the laboratory attendant did not note which was which. The BOD values of the three samples A, B and C were recorded as 20 mg/L, 8 mg/L and 400 mg/L, respectively. Which sample of the water is most polluted? Can you assign the correct label to each, assuming the river water is relatively clean?
Find out the name of the microbes from which cyclosporin A (an immunosuppressive drug) and statins (blood cholesterol lowering agents) are obtained.
Find out the role of microbes in the following:
Single cell protein (SCP)
Find out the role of microbes in the following:
Soil
Arrange the following in the decreasing order (most important first) of their importance for the welfare of human society. Give reasons for your answer.
Biogas, Citric acid, Penicillin and Curd
How do biofertilisers enrich the fertility of the soil?
Solutions for 8: Human Health and Disease
NCERT solutions for बायोलॉजी पार्ट 1 अँड 2 [इंग्रजी] इयत्ता १२ chapter 8 - Human Health and Disease
Shaalaa.com has the CBSE, Karnataka Board PUC Mathematics बायोलॉजी पार्ट 1 अँड 2 [इंग्रजी] इयत्ता १२ CBSE, Karnataka Board PUC solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT solutions for Mathematics बायोलॉजी पार्ट 1 अँड 2 [इंग्रजी] इयत्ता १२ CBSE, Karnataka Board PUC 8 (Human Health and Disease) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in बायोलॉजी पार्ट 1 अँड 2 [इंग्रजी] इयत्ता १२ chapter 8 Human Health and Disease are Concept and Determinants of Health, Immunity, Overview of Human Health and Diseases, Modes of Transmission of Diseases through Pathogens, Diseases Caused by Bacteria > Typhoid, Diseases Caused by Bacteria > Pneumonia, Diseases Caused by Viruses > Common Cold, Diseases Caused by Protozoa > Malaria, Diseases Caused by Protozoa > Amoebiasis (Amoeboic dysentery), Diseases Caused by Helminths > Ascariasis, Diseases Caused by Helminths > Filariasis (Elephantiasis), Diseases Caused by Fungi > Ringworm, Types of Immunity > Acquired Immunity, Active and Passive Immunity, Prevention and Control of Infectious Diseases, Autoimmunity, The Immune System, Acquired Immuno Deficiency Syndrome (AIDS), Cancer, Causes of Cancer, Symptoms and Diagnosis of Cancer, Prevention/Treatment of Cancer, Drugs and Alcohol Abuse, Effects of Drug and Alcohol, Vaccination and Immunization, Allergies, Addiction and Dependence, Prevention and Control of Drugs and Alcohol Abuse, Types of Immunity > Innate Immunity, Microbes in Household Products, Microbes in Industrial Products, Microbes in Sewage Treatment, Microbes as Biocontrol Agents, Microbes in Production of Biogas, Microbes as Biofertilizers, Overview of Microbes in Human Welfare, Microorganisms (Microbes) and Microbiology.
Using NCERT बायोलॉजी पार्ट 1 अँड 2 [इंग्रजी] इयत्ता १२ solutions Human Health and Disease exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in NCERT Solutions are essential questions that can be asked in the final exam. Maximum CBSE, Karnataka Board PUC बायोलॉजी पार्ट 1 अँड 2 [इंग्रजी] इयत्ता १२ students prefer NCERT Textbook Solutions to score more in exams.
Get the free view of Chapter 8, Human Health and Disease बायोलॉजी पार्ट 1 अँड 2 [इंग्रजी] इयत्ता १२ additional questions for Mathematics बायोलॉजी पार्ट 1 अँड 2 [इंग्रजी] इयत्ता १२ CBSE, Karnataka Board PUC, and you can use Shaalaa.com to keep it handy for your exam preparation.
