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NEET UG BIOLOGY Multiple Choice Questions (MCQs)

NEET UG - Biology MCQs

NEET UG Biology MCQs (Unit 8: Biology and Human Welfare)

211. Which of the following is the causative agent of malaria?
a) Plasmodium
b) Ascaris
c) Vibrio cholera
d) Entamoeba histolytica

Answer: a) Plasmodium

212. Which of the following diseases is caused by a protozoan parasite?
a) Typhoid
b) Pneumonia
c) Malaria
d) Filariasis

Answer: c) Malaria

213. Which of the following is the primary method for controlling the spread of dengue fever?
a) Using antibiotics
b) Vector control (eliminating mosquito breeding sites)
c) Vaccination
d) Reducing human population density

Answer: b) Vector control (eliminating mosquito breeding sites)

214. Which of the following pathogens is responsible for the common cold?
a) Bacteria
b) Virus
c) Fungus
d) Protozoa

Answer: b) Virus

215. Which of the following parasites causes filariasis?
a) Wuchereria bancrofti
b) Plasmodium falciparum
c) Ascaris lumbricoides
d) Trichomonas vaginalis

Answer: a) Wuchereria bancrofti

216. What is the role of vaccines in immunology?
a) They directly cure diseases
b) They enhance the immune system’s ability to fight infections
c) They provide immediate relief from symptoms
d) They replace antibiotics in treatment

Answer: b) They enhance the immune system’s ability to fight infections

217. HIV affects the human body by targeting which type of cells?
a) Red blood cells
b) White blood cells
c) Platelets
d) Muscle cells

Answer: b) White blood cells

218. What is the main cause of cancer?
a) Bacterial infection
b) Viral infection
c) Uncontrolled growth of cells
d) Genetic mutation in reproductive cells

Answer: c) Uncontrolled growth of cells

219. Which of the following is a major risk factor for the development of lung cancer?
a) Alcohol abuse
b) Tobacco smoking
c) Drug abuse
d) Physical inactivity

Answer: b) Tobacco smoking

220. Which of the following diseases is transmitted by the Aedes mosquito?
a) Malaria
b) Filariasis
c) Dengue
d) Typhoid

Answer: c) Dengue

221. What is the causative agent of amoebiasis?
a) Entamoeba histolytica
b) Plasmodium falciparum
c) Ascaris lumbricoides
d) Trypanosoma brucei

Answer: a) Entamoeba histolytica

222. What is the role of microbes in sewage treatment?
a) Decompose organic matter
b) Produce antibiotics
c) Release toxic gases
d) Produce energy

Answer: a) Decompose organic matter

223. Which of the following is used as a biocontrol agent in agriculture?
a) Bacillus thuringiensis
b) Rhizobium
c) Yeast
d) Saccharomyces cerevisiae

Answer: a) Bacillus thuringiensis

224. Which type of microorganism is commonly used in the production of alcohol in the brewing industry?
a) Bacteria
b) Fungi
c) Virus
d) Protozoa

Answer: b) Fungi

225. What is the function of biofertilizers?
a) Increase the nitrogen content in the soil
b) Control plant diseases
c) Improve soil structure
d) Provide direct nutrients to plants

Answer: a) Increase the nitrogen content in the soil

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NEET UG BIOLOGY Multiple Choice Questions (MCQs)

NEET UG Biology MCQs (Unit 8: Biology and Human Welfare)

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