Biology MCQ
#10 Biology Class 12 Chapter 10 - Human Health and Diseases MHTCET / NEET MCQ
(a) Elephantiasis(b) AIDS(c) Malaria(d) Hepatitis B
Answer-
(a) Elephantiasis
(2) Opium derivative is .......... .
(a) Codeine(b) Caffeine(c) Heroin(d) Psilocybin
Answer-
(c) Heroin
(3) The stimulant present in tea is .......... .
(a) tannin(b) cocaine(c) caffeine(d) crack
Answer-
(c) caffeine
(4) Which of the following is caused by smoking ?
(a) Liver cirrhosis(b) Pulmonary tuberculosis(c) Emphysema(d) Malaria
Answer-
(c) Emphysema
(5) An antibody is .......... .
(a) molecule that binds specifically an antigen(b) WBC which invades bacteria(c) secretion of mammalian RBC(d) cellular component of blood
Answer-
(a) molecule that binds specifically an antigen
(6) The antiviral proteins released by a virusinfectedn cell are called .......... .
(a) histamines(b) interferons(c) pyrogens(d) allergens
Answer-
(b) interferons
(7) Both B-cells and T-cells are derived from .......... .
(a) lymph nodes(b) thymus glands(c) liver(d) stem cells in bone marrow
Answer-
(b) thymus glands
(8) Which of the following diseases can be contracted by droplet infection ?
(a) Malaria(b) Chicken pox(c) Pneumonia(d) Rabies
Answer-
(c) Pneumonia
(9) Confirmatory test used for detecting HIV infection is .......... .
(a) ELISA(b) Western blot(c) Widal test(d) Eastern blot
Answer-
(b) Western blot
(10) Elephantiasis is caused by .......... .
(a) W. bancrofti(b) P. vivax(c) Bedbug(d) Elephant
Answer-
(a) W. bancrofti
(11) Innate immunity is provided by .......... .
(a) phagocytes(b) antibody(c) T-lymphocytes(d) B-lymphocytes
Answer-
(c) T-lymphocytes
(12) Infectious stage of Plasmodium is .......... .
(a) trophozoite(b) sporozoite(c) cryptozoite(d) metacercaria
Answer-
(b) sporozoite
(13) After birth, antibodies are transferred from mother to infant through .......... .
(a) colostrum(b) placenta(c) blood(d) tissue fluid
Answer-
(a) colostrum
(14) Which cells give rise to T-lymphocytes ?
(a) Thymocytes(b) Bone marrow cells(c) Erythrocytes(d) Leucocytes
Answer-
(a) Thymocytes
(15) Where is antigen D is present ?
(a) On Rhesus factor(b) On the surface of RBCs(c) On A-antigen(d) On AB-antigen
Answer-
(b) On the surface of RBCs
(16) Erythroblastosis foetalis is caused when mother is .......... .
(a) Rh +ve(b) with antibody ‘a’(c) Rh –ve(d) with antibody ‘b’
Answer-
(c) Rh –ve
(17) Which of the following is NOT a parasitic vector insect ?
(a) Mosquito(b) Housefly(c) Honey bee(d) Head louse
Answer-
(c) Honey bee
(18) Which is the proper sequence in the developmental stages of Plasmodium ?
(a) Merozoites -> Sporozoite -> Trophozoites -> Schizonts(b) Trophozoites -> Merozoites -> Sporozoite -> Schizonts(c) Sporozoite -> Merozoites -> Trophozoites -> Schizonts(d) Schizonts -> Merozoites -> Sporozoite -> Trophozoites.
Answer-
(c) S porozoite -> Merozoites -> Trophozoites -> Schizonts
(19) There is no vaccination on this disease till today.
(a) Typhoid(b) Tuberculosis(c) Polio(d) AIDS
Answer-
(d) AIDS
(20) Charas, hashish, ganja are obtained from .......... .
(a) Papaver somniferum(b) Erythroxylum coca(c) Atropa belladona(d) Cannabis sativa
Answer-
(d) Cannabis sativa
(21) .......... Plant is used to obtain cocaine alkaloid.
(a) Marijuana(b) Papaver somniferum(c) Cannabis sativa(d) Coca
Answer-
(d) Coca
(22) .......... fish is released in the waterbody to prevent the spread of Malaria and Filaria.
(a) Pomfret(b) Tilapia(c) Gambusia(d) Gold fish
Answer-
(c) Gambusia
(23) The carcinogen that can cause vaginal cancer is .......... .
(a) Vinyl chloride(b) Diethylstilboestrol(c) M ustard gas(d) Cadmium oxide
Answer-
(b) Diethylstilboestrol
(24) Prostate cancer can be caused due to exposure to .......... .
(a) cadmium oxide(b) mustard gas(c) asbestos(d) Nickel and chromium compounds
Answer-
(a) cadmium oxide
(25) Choose the correct definition of health :
(a) Health is not contracting any disorder or disease.(b) S tate of complete physical, mental and social well-being.(c) Health is complete absence of any disease.(d) Health is feeling good all the time.
Answer-
(b) State of complete physical, mental and social well-being
(26) The interval between infection and appearance of disease symptoms is called .......... .
(a) inoculation(b) penetration(c) infection period(d) incubation period
Answer-
(d) incubation period
(27) What is injected in vaccination ?
(a) Half killed pathogen(b) Dead pathogens(c) Live pathogens(d) Readymade antibodies
Answer-
(a) Half killed pathogen
(28) Who among the following is considered as father of immunology ?
(a) Ferdinand Kohn(b) Robert Koch(c) Louis Pasteur(d) Edward Jenner
Answer-
(d) Edward Jenner
(29) Who coined the term antibiotics ?
(a) Charles Darwin(b) Louis Pasteur(c) Alexander Fleming(d) Selman Waksman
Answer-
(d) Selman Waksman
(30) Who coined the term antibody ?
(a) Selman Waksman(b) Alexander Fleming(c) Paul Ehrlich(d) Edward Jenner
Answer-
(c) Paul Ehrlich
(31) Widal test is used for the diagnosis of ......... .
(a) Malaria(b) Typhoid(c) Diabetes mellitus(d) HIV/AIDS
Answer-
(b) Typhoid
(32) Which bacterial genus out of the following is the common pathogen causing pneumonia ?
(a) Streptococcus sps(b) Lactobacillus sps(c) Pseudomonas sps(d) Salmonella sps
Answer-
(a) Streptococcus sps
(33) Given below are some statements. Which among them are symptoms of pneumonia ?
(i) Greenish, yellow sputum coughed out.
(ii) Hepatomegaly and hypoglycemia.
(iii) High fever with shaking chills.
(iv) Thickening of skin and underlying tissues.
(v) Stabbing chest pain with shortness of breath.
(vi) Mood swings and joint pains along with nausea and vomiting.
(a) (i), (ii), (iii), (iv)(b) (i), (iii), (v), (vi)(c) (i), (ii), (iv), (vi)(d) (ii), (iii), (iv), (v)
Answer-
(b) (i), (iii), (v), (vi)
(34) Which of the following is not the common way to prevent common cold ?
(a) Using hand sanitizers(b) Blowing nose in open(c) Staying away from people suffering from cold(d) Sipping warm water
Answer-
(b) Blowing nose in open
(35) Common cold is not cured by antibiotics because it is ......... .
(a) caused by a virus(b) caused by a Gram-positive bacterium(c) caused by a Gram-negative bacterium(d) not an infectious disease
Answer-
(a) caused by a virus
(36) Motile zygote of Plasmodium occurs in ......... .
(a) gut of female Anopheles(b) salivary glands of Anopheles(c) Human RBCs(d) Human liver
Answer-
(a) gut of female Anopheles
(37) Haemozoin is ......... .
(a) a precursor of haemoglobin(b) a toxin from Streptococcus(c) a toxin from Plasmodium(d) a toxin from Hemophilus
Answer-
(c) a toxin from Plasmodium
(38) Vaccination against malaria is not possible because ......... .
(a) they produce antibodies and antitoxins(b) they do not produce antibodies and antitoxins(c) antibodies resistant to vaccines are produced(d) none of these
Answer-
(b) they do not produce antibodies and antitoxins
(39) The active form of Entamoeba histolytica feeds upon ......... .
(a) blood only(b) erythrocytes, mucosa and submucosa of colon(c) mucosa and submucosa of colon only(d) food in intestine
Answer-
(b) erythrocytes, mucosa and submucosa of colon
(40) Eating unwashed and raw green leafy vegetables grown along the railway tracks in Mumbai may cause ......... .
(a) malaria(b) influenza(c) amoebic colitis(d) ringworm
Answer-
(c) amoebic colitis
(41) Which method of water purification can terminate amoebae ?
(a) Chlorination(b) Sedimentation(c) Filtration(d) Boiling
Answer-
(d) Boiling
(42) Which of the following measures should be taken to control amoebic dysentery ?
(A) Using insecticidal sprays to kill flies.
(B) Not allowing stagnant water to be accumulated over a long time.
(C) To avoid eating uncovered food.
(D) Drinking only boiled water.
(E) Eating plenty of fruits.
(a) (A) (C) (D)(b) (A) (B) (D)(c) (B) (C) (E)(d) (A) (B) (E)
Answer-
(a) (A) (C) (D)
(43) Which of the following should be avoided for endemic spread of amoebiasis ?
(a) Cleaning bathroom taps and toilet seats with disinfectants.(b) Washing hands and using hand sanitizers.(c) Proper sewage disposal and treatment.(d) Eating uncovered roadside food.
Answer-
(d) E ating uncovered roadside food.
(44) Name the disease in which the genital organs are grossly affected due to infective helminth.
(a) Ascariasis(b) Ring worm(c) Scabies(d) Filariasis
Answer-
(d) Filariasis
(45) Find the odd organism :
(a) Wuchereria bancrofti(b) Brugia malayi(c) Brugia timori(d) Ascaris lumbricoides
Answer-
(d) Ascaris lumbricoides
(46) When is hydrocele formed in a man ?
(a) When testis are not functioning properly.(b) When scrotum is infected with filarial worms.(c) When testis are injured due to accident.(d) When there is water accumulation in testis.
Answer-
(b) When scrotum is infected with filarial worms
(47) Which medicine is used for eradicating microfilariae from endemic areas ?
(a) Diethyle carbamacine(b) Mebendazole(c) Albendazole(d) Rimfampcin
Answer-
(a) Diethyle carbamacine
(48) Which of the following fungi are causative organisms of ringworm ?
(a) Microsporum(b) Candida(c) Thrush(d) Tinea pedis
Answer-
(a) Microsporum
(49) On which material present on the outer skin surfaces of the human body does the fungus causing infections feed on ?
(a) Melanin(b) Keratin(c) Lignin(d) Suberin
Answer-
(b) Keratin
(50) Which of the following statements is correct ?
(a) Fungus grows well on dry skin.(b) Fungus cannot survive on the outside of the hair shafts.(c) Fungus thrives well on the warm and moist skin.(d) Nails can never show fungal infections.
Answer-
(c) Fungus thrives well on the warm and moist skin.
(51) Which of the following pair is viral diseases ?
(a) Common cold, AIDS(b) Dysentery, Common cold(c) Typhoid, Tuberculosis(d) Ringworm, AIDS
Answer-
(a) Common cold, AIDS
(52) Which one of the following glands is often referred in relation with AIDS ?
(a) Thymus(b) Adrenal(c) Thyroid(d) Pancreas
Answer-
(a) Thymus
(53) The first patient of AIDS was detected in India in......... .
(a) 1980(b) 1986(c) 1990(d) 1996
Answer-
(b) 1986
(54) Why is it said that for AIDS prevention is the only cure ?
(a) AIDS does not have any cure, once it is contracted.(b) By prevention AIDS cannot be cured.(c) AIDS can be cured by proper medication and vaccination.(d) Only prevention helps as there is no cure for AIDS.
Answer-
(d) Only prevention helps as there is no cure for AIDS.
(55) After a person is detected to be having AIDS by ELISA test, which is the next confirmatory test ?
(a) Western blot(b) Southern blot(c) PCR(d) Northern blot
Answer-
(a) Western blot
(56) What is full form of ELISA ?
(a) Enzyme Linked Inductive Assay(b) Enzyme Linked Iron Sorbent Assay(c) Enzyme Linked Immunosorbent Assay(d) None of the above
Answer-
(c) Enzyme Linked Immunosorbent Assay
(57) The possible ways of transmission of AIDS are ......... .
(A) I ntimate sexual contact
(B) Hugging and kissing
(C) Blood transfusion without properly checking it
(D) Eating from the same plate
(E) Sharing bed linen
(F) Transplacental infection from infected mother
(G) Sharing same tattoo gun and syringes
(a) (A), (C), (F), (G)(b) (B), (D), (E), (G)(c) (C), (D), (E), (F)(d) (A), (B), (C), (D)
Answer-
(a) (A), (C), (F), (G)
(58) Which one of the following statements is correct ?
(a) Benign tumours show the property of metastasis.(b) Heroin accelerates body functions.(c) Malignant tumours may exhibit metastasis.(d) Patients who have undergone surgery are given cannabinoids to relieve pain.
Answer-
(c) Malignant tumours may exhibit metastasis.
(59) Heroin or smack is chemically ......... .
(a) diclofenac(b) diacetyl morphine(c) benzodiazepine(d) amphetamines
Answer-
(b) diacetyl morphine
(60) Ecstasy is a drug that is used in most of the Rev parties which is chemically a derivative of ......... .
(a) Barbiturates(b) Amphetamines(c) Catecholamine(d) Morphine
Answer-
(b) Amphetamines
(61) From which plant is charas obtained ?
(a) Cannabis sativa(b) Erythroxylum coca(c) Papaver somniferum(d) Atropa belladonna
Answer-
Cannabis sativa
(62) Opium is obtained from the latex of the unripe fruits of .......... .
(a) Cannabis sativa(b) Thea siensis(c) Papaver somniferum(d) Erythroxylon coca
Answer-
(a) Papaver somniferum
(63) Use of Cannabis products results in ......... .
(a) depressed brain activity and feeling of calmness(b) suppressed brain function and relief of pain(c) stimulation of nervous system, increased alertness and activity(d) alteration in perception, thoughts and feelings
Answer-
(d) alteration in perception, thoughts and feelings
(64) Marijuana, ganja and LSD are ......... .
(a) narcotics(b) stimulants(c) hallucinogens(d) all of these
Answer-
(c) hallucinogens
(65) What is the source of LSD ?
(a) Poppy seeds(b) Datura plant(c) Sugar(d) Claviceps purpurea
Answer-
(d) Claviceps purpurea
(66) Narcotics are ......... .
(a) amphetamines and caffeine(b) morphine and heroine(c) LSD and cocaine(d) barbiturates and benzodiazepine
Answer-
(b) morphine and heroine
(67) Which is an incorrectly matched pair ?
(a) LSD – Ergot fungus(b) Heroin – Opium(c) Amphetamines – Depressant(d) Benzodiazepine – Calmpose tablets
Answer-
(c) A mphetamines – Depressant
(68) Choose the incorrect statement :
(a) The excessive use of anabolic steroids cause severe acne.(b) In both the sexes there is increased aggressiveness and mood swings, due to steroids.(c) In females, anabolic steroids cause breast enlargement.(d) In males, anabolic steroids cause enlargement of prostate gland.
Answer-
(c) I n females, anabolic steroids cause breast enlargement.
(69) Who are the first ones to note the danger signs of drug or alcohol abuse in the adolescents ?
(a) A lert parents and teachers(b) Neighbours(c) Relatives(d) Doctors
Answer-
(a) A lert parents and teachers
(70) Who can give professional help for the deaddiction ?
(a) Highly qualified psychiatrist(b) Parents(c) Teachers(d) Friends
Answer-
(a) Highly qualified psychiatrist
