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Biology And Human Welfare Important Questions for NEET Biology - 2026

Q: 1. What are the most expected types of important questions from Biology And Human Welfare for NEET?

Students often see MCQs, assertion-reason, and statement-based questions from this chapter. Focus on disease-causing microbes, immunity, types of pathogens, and the role of microbes in industry. These patterns help check both memory and application of concepts during the NEET exam.

Q: 3. How should I prepare for assertion-reason and diagram-based questions in this chapter?

For assertion-reason questions, read concepts like immunity, vaccines, and disease transmission closely. For diagram-based, revise labeled diagrams on life cycles of pathogens and microbes in industry. Practice sample questions often found in NEET mock tests and keep your notes concise for quick revision.

Q: 5. How are questions related to microbes in human welfare structured for NEET important questions?

NEET often tests application and identification—expect MCQs or match-the-following on roles of microbes in:Food processing (curd, cheese, bread)Antibiotic productionSewage treatmentBiocontrol and biofertilizers

Q: 6. What are common pitfalls students face when answering NEET important questions from Adolescence and substance abuse topics?

The biggest mistakes include mixing up effects of different substances, confusing terms (like addiction vs. dependence), and ignoring case-based MCQs. Carefully read each question, focus on symptoms, and stay updated on latest NEET trends by practicing varied question types from this subtopic.

Practice Biology And Human Welfare Important Questions - Free PDF Download

Biology And Human Welfare is an essential chapter in NEET Biology. This topic focuses on real-life health issues and how biology helps solve them. Vedantu’s NEET Important Questions with Answers can guide you to practice more effectively.

You will learn about diseases, pathogens, parasites, and health concerns such as Malaria, Typhoid, HIV/AIDS, and drug abuse. Key concepts also include immunity, vaccination, and the roles of microbes in food, industry, and waste treatment. Each syllabus subtopic builds your understanding of how biology impacts human life.

Practicing these questions helps you cover what often appears in NEET exams. Use them to prepare for important topics and clear doubts. Download the NEET Important Questions PDF for free and get ahead in your exam preparation.

Practice Biology And Human Welfare Important Questions - Free PDF Download

1. Multiple choice questions.

Q1. Which of the following diseases is caused by a protozoan?

(a) Filariasis
(b) Amoebiasis
(c) Pneumonia
(d) Ringworm

Answer: (b) Amoebiasis

Q2. Which vaccine provides immunity against tuberculosis?

(a) DPT
(b) BCG
(c) OPV
(d) Hepatitis B

Answer: (b) BCG

Q3. Which of the following is not a sexually transmitted infection (STI)?

(a) Gonorrhea
(b) Chikungunya
(c) Syphilis
(d) AIDS

Answer: (b) Chikungunya

Q4. Which microorganism is used in the production of curd?

(a) Penicillium
(b) Streptococcus
(c) Rhizobium
(d) Saccharomyces

Answer: (b) Streptococcus

Q5. HIV targets which type of cells in the human body?

(a) Erythrocytes
(b) Platelets
(c) Helper T-lymphocytes
(d) B-lymphocytes

Answer: (c) Helper T-lymphocytes

2. Very Short Answer (VSA).

Q6. Name the pathogen that causes malaria in humans.

Answer: Plasmodium species (mainly Plasmodium falciparum and Plasmodium vivax) cause malaria in humans.

Q7. Which immune cells produce antibodies?

Answer: B-lymphocytes (B-cells) are responsible for producing antibodies in the human body.

Q8. What is the main symptom of filariasis?

Answer: Swelling of body parts, especially legs (elephantiasis), is the main symptom of filariasis.

Q9. Name the enzyme present in yeast used for ethanol production.

Answer: The enzyme zymase, present in yeast, helps in the conversion of glucose to ethanol.

Q10. What type of pathogen causes ringworm?

Answer: Ringworm is caused by fungi such as Microsporum, Trichophyton, and Epidermophyton.

3. Short Answer Questions.

Q11. Explain the difference between innate and acquired immunity.

Answer: Innate immunity is the non-specific, first line of defense present from birth, offering immediate protection. Acquired immunity develops after exposure to specific pathogens, involving lymphocytes and the production of antibodies, and provides long-term, memory-based defense.

Q12. How do biocontrol agents benefit agriculture?

Answer: Biocontrol agents like Trichoderma and Baculoviruses control crop pests and diseases naturally, reducing the use of chemical pesticides. They maintain ecological balance, are eco-friendly, and help improve soil health and sustainability.

Q13. Describe the mode of transmission and preventive measures for dengue.

Answer: Dengue is transmitted by the bite of Aedes mosquitoes carrying the dengue virus. Preventive measures include avoiding stagnant water, using mosquito nets and repellents, and wearing protective clothing to reduce mosquito exposure.

Q14. Discuss the harmful effects of tobacco use among adolescents.

Answer: Tobacco use in adolescents can cause respiratory problems, decreased lung function, increased cancer risk, and addiction. It also affects concentration, academic performance, and overall mental and physical health.

4. True or False Questions.

Q15. Streptococcus pneumoniae causes typhoid.

Answer: False

Q16. Opioids are classified as depressant drugs.

Answer: True

Q17. Antibodies are proteins produced by B-lymphocytes.

Answer: True

Q18. Amoebiasis is transmitted by contaminated food and water.

Answer: True

Q19. Microbes are never beneficial to humans.

Answer: False

3. Fill in the Blanks Questions.

Q20. ______ is used as a biofertilizer in rice fields.

Answer: Blue Green Algae (Cyanobacteria) / Anabaena

Q21. The causative agent of AIDS is ______.

Answer: Human Immunodeficiency Virus (HIV)

Q22. The function of activated sludge in sewage treatment is to degrade ______ matter.

Answer: Organic

Q23. ______ is the most common cause of pneumonia in children.

Answer: Streptococcus pneumoniae

Q24. Penicillin is obtained from the fungus ______.

Answer: Penicillium notatum

How Biology and Human Welfare Empowers NEET Aspirants

Exploring Biology and Human Welfare helps you understand health, disease prevention, and the role of microbes. With these concepts, NEET aspirants can better relate biology to real-life scenarios and human well-being, an important area for scoring in competitive exams like NEET.

Topics like immunity, vaccines, and microbial applications are key parts of the NEET Biology syllabus. Grasping these ideas with Vedantu’s smart learning approach not only builds your foundation but also supports your problem-solving and critical thinking for exams.

Our curated questions cover health and disease, pathogens, and human welfare in Biology. Regular practice with such NEET-relevant topics gives you stronger recall, confidence, and clarity — helping you achieve your academic success with Vedantu.

FAQs on Biology And Human Welfare Important Questions for NEET Biology - 2026

1. What are the most expected types of important questions from Biology And Human Welfare for NEET?

Students often see MCQs, assertion-reason, and statement-based questions from this chapter. Focus on disease-causing microbes, immunity, types of pathogens, and the role of microbes in industry. These patterns help check both memory and application of concepts during the NEET exam.

2. Which human diseases and pathogens are frequently asked in NEET important questions?

NEET questions frequently target pathogens and their diseases, such as:

Malaria (Plasmodium)
Typhoid (Salmonella typhi)
Amoebiasis (Entamoeba histolytica)
Dengue (virus)
Ring worm (fungi)

3. How should I prepare for assertion-reason and diagram-based questions in this chapter?

For assertion-reason questions, read concepts like immunity, vaccines, and disease transmission closely. For diagram-based, revise labeled diagrams on life cycles of pathogens and microbes in industry. Practice sample questions often found in NEET mock tests and keep your notes concise for quick revision.

4. What are some key topics in Basic Concepts of Immunology and Vaccines that are usually asked in NEET exams?

Focus on definitions and differences, such as:

Types of Immunity (innate vs. acquired)
Principle of vaccination
Active & passive immunity
Common vaccine examples

5. How are questions related to microbes in human welfare structured for NEET important questions?

NEET often tests application and identification—expect MCQs or match-the-following on roles of microbes in:

Food processing (curd, cheese, bread)
Antibiotic production
Sewage treatment
Biocontrol and biofertilizers

6. What are common pitfalls students face when answering NEET important questions from Adolescence and substance abuse topics?

The biggest mistakes include mixing up effects of different substances, confusing terms (like addiction vs. dependence), and ignoring case-based MCQs. Carefully read each question, focus on symptoms, and stay updated on latest NEET trends by practicing varied question types from this subtopic.

7. What strategy works best for practicing NEET important questions in Biology And Human Welfare?

Start by revising NCERT line-by-line, then attempt chapter-wise NEET MCQs. Use:

Timed question practice sessions
Mix of assertion-reason, statement, and match-type questions
Regular self-assessment to find weak points