In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels?
(4) Ringworm disease
Which part of poppy plant is used to obtain the drug “Smack”?
Transplantation of tissues/organs fails often due to non-acceptance by the patient's body. Which type of immune-response is responsible for such rejections?
(1) Autoimmune response
(2) Cell-mediated immune response
(3) Hormonal immune response
(4) Physiological immune response
Match the following sexually transmitted diseases (Column - I) with their causative agent (Column - II) and select the correct option.
Column - I Column- II
(a) Gonorrhea (i) HIV
(b) Syphilis (ii) Neisseria
(c) Genital Warts (iii) Treponema
(d) AIDS (iv) Human Papilloma virus
(1) a(ii), b(iii), c(iv), d(i)
(2) a(iii), b(iv), c(i), d(ii)
(3) a(iv), b(ii), c(iii), d(i)
(4) a(iv), b(iii), c(ii), d(i)
MALT constitutes about ___________ percent of the lymphoid tissue in human body
(1) 50% (2) 20% (3) 70% (4) 10%
Which of the following sets of diseases is caused by bacteria?
(1) Cholera and tetanus
(2) Typhoid and smallpox
(3) Tetanus and mumps
(4) Herpes and influenza
Which of the following is correct regarding AIDS causative agent HIV?
(1) HIV is enveloped virus containing one molecule of single-stranded RNA and one molecule of reverse transcriptase
(2) HIV is enveloped virus that contains two identical molecules of single-stranded RNA and two molecules of reverse transcriptase
(3) HIV is unenveloped retrovirus
(4) HIV does not escape but attacks the acquired immune response
Which of the following statements is not true for cancer cells in relation to mutations?
(1) Mutations inhibit production of telomerase
(2) Mutations in proto-oncogenes accelerate the cell cycle
(3) Mutations destroy telomerase inhibitor
(4) Mutations inactivate the cell control
Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain
(1) Attenuated pathogens
(2) Activated pathogens
(3) Harvested antibodies
(4) Gamma globulin
In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self-cells, then it leads to
(1) Active immunity
(2) Allergic response
(3) Graft rejection
(4) Auto-immune disease
Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers
(2) Nitrous oxide
Which of the following immunoglobulins does constitute the largest percentage in human milk?
Which of the following viruses is not transferred through semen of an infected male?
(1) Ebola virus
(2) Hepatitis B virus
(3) Human immunodeficiency virus
(4) Chikungunya virus
HIV that causes AIDS, first starts destroying
(2) B lymphocytes
(4) Helper T lymphocytes
Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?
(1) Increased liver cancer
(2) Increased skin cancer
(3) Reduced Immune System
(4) Damage to eyes
The active form of Entamoeba histolytica feeds upon
(1) Blood only
(2) Erythrocytes; mucosa and submucosa of colon
(3) Mucosa and submucosa of colon only
(4) Food in intestine
Which is the particular type of drug that is obtained from the plant whose one flowering branch is shown below?
(4) Pain killer
At which stage of HIV infection does one usually show symptoms of AIDS?
(1) Within 15 days of sexual contact with an infected person
(2) When the infected retro virus enters host cells
(3) When HIV damages large number of helper T lymphocytes
(4) When the viral DNA is produced by reverse transcriptase
Infection of Ascaris usually occurs by
(1) Eating imperfectly cooked pork
(2) Tse-tse fly
(3) Mosquito bite
(4) Drinking water containing eggs of Ascaris
The cell-mediated immunity inside the human body is carried out by
(1) B lymphocytes
(4) T lymphocytes
Common cold differs from pneumonia in, that
(1) Pneumonia pathogen infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs
(2) Pneumonia is a communicable disease whereas the common cold is a nutritional deficiency disease
(3) Pneumonia can be prevented by a live attenuated bacterial vaccine whereas the common cold has no effective vaccine
(4) Pneumonia is caused by a virus while the common cold is caused by the bacterium Haemophilus influenzae
Which one of the following is not a property of cancerous cells whereas the remaining three are?
(1) They show contact inhibition
(2) They compete with normal cells for vital nutrients
(3) They do not remain confined in the area of formation
(4) They divide in an uncontrolled manner
Motile zygote of Plasmodium occurs in
(1) Human liver
(2) Gut of female Anopheles
(3) Salivary glands of Anopheles
(4) Human RBCs
In which one of the following options the two examples are correctly matched with their particular type of immunity?
Examples Type of immunity
(1) Mucus coating of epithelium lining the urinogenital – Physiological barriers
tract and the HCl in stomach
(2) Polymorphonuclear leukocytes and monocytes – Cellular barriers
(3) Anti-tetanus and anti-snake bite injections – Active immunity
(4) Saliva in mouth and tears in eyes – Physical barrier
Which one of the following sets of items in the options 1-4 are correctly categorised with one exception in it?
Items Category Exception
(1) UAA, UAG, UGA Stop codons UAG
(2) Kangaroo, Koala, Wombat Australian marsupials Wombat
(3) Plasmodium, Cuscuta, Protozoan parasites Cuscuta
(4) Typhoid, Pneumonia, Bacterial diseases Diphtheria
Identify the molecules (a) and (b) shown below and select the right option giving their source and use
Molecule Source Use
(1)(a) Cocaine Erythroxylum coca Accelerates the transport of dopamine
(2)(b) Heroin Cannabis sativa Depressant and slows down body functions
(3)(b) Cannabinoid Atropa belladona Produces hallucinations
(4)(a) Morphine Papaver somniferum Sedative and pain killer
Select the correct statement with respect to diseases and immunisation
(1) Certain protozoans have been used to mass produce hepatitis B vaccine
(2) Injection of snake antivenom against snake bite is an example of active immunisation
(3) If due to some reason B and T lymphocytes are damaged, the body will not produce antibodies against a pathogen
(4) Injection of dead / inactivated pathogens causes passive immunity
Common cold is not cured by antibiotics because it is
(1) Caused by a Gram-negative bacterium
(2) Not an infectious disease
(3) Caused by a virus
(4) Caused by a Gram-positive bacterium
Which one of the following options gives the correct matching of a disease with its causative organism and mode of infection
Disease Causative Organisms Mode of Infection
(1) Elephantiasis Wuchereria bancrofti With infected water and food
(2) Malaria Plasmodium vivax Bite of male Anopheles mosquito
(3) Typhoid Salmonella typhi With inspired air
(4) Pneumonia Streptococcus pneumoniae Droplet infection
The pathogen Microsporum responsible for ringworm disease in humans belongs to the same Kingdom of organisms as that of
(1) Rhizopus, a mould
(2) Ascaris, a round worm
(3) Taenia, a tapeworm
(4) Wuchereria, a filarial worm
Select the correct statement from the ones given below:
(1) Barbiturates when given to criminals make them tell the truth
(2) Morphine is often given to persons who have undergone surgery as a pain killer.
(3) Chewing tobacco lowers blood pressure and heart rate
(4) Cocaine is given to patients after surgery as it stimulates recovery
Fastest distribution of some injectible material/ medicine and with no risk of any kind can be achieved by injecting it into the
(1) Muscles (2) Arteries (3) Veins (4) Lymph vessels
Which one of the following techniques is safest for the detection of cancers?
(1) Magnetic resonance imaging (MRI)
(2) Radiography (X-ray)
(3) Computed tomography (CT)
(4) Histopathological studies
A person suffering from a disease caused by Plasmodium, experiences recurring chill and fever at the time when?
(1) The sporozoites released from RBCs are being rapidly killed and broken down inside spleen
(2) The trophozoites reach maximum growth and give out certain toxins
(3) The parasite after its rapid multiplication inside RBCs ruptures them, releasing the stage to enter fresh RBCs
(4) The microgametocytes and megagametocytes are being destroyed by the WBCs
Which one of the following cannot be used for preparation of vaccines against plague?
(1) Formalin-inactivated suspensions of virulent bacteria
(2) Avirulent live bacteria
(3) Synthetic capsular polysaccharide material
(4) Heat-killed suspensions of virulent bacteria
To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?
(1) Physical barriers
(2) Cytokine barriers
(3) Cellular barriers
(4) Physiological barriers
Which one of the following is the correct statement regarding the particular psychotropic drug specified?
(1) Barbiturates cause relaxation and temporary euphoria
(2) Hashish causes after thought perceptions and hallucinations
(3) Opium stimulates nervous system and causes hallucinations
(4) Morphine leads to delusions and disturbed emotions
Cornea transplant in humans is almost never rejected. This is because
(1) It is a non-living layer
(2) Its cells are least penetrable by bacteria
(3) It has no blood supply
(4) It is composed of enucleated cells
A person showing upredictable moods, outbursts of emotion, quarrelsome behaviour and conflicts with others is suffering from
(2) Borderline personality disorder (BPD)
(3) Mood disorders
(4) Addictive disorders
Antibodies in our body are complex
Both sickle cell anaemia and Huntington’s chorea are
(1) Bacteria-related diseases
(2) Congenital disorders
(3) Pollutant-induced disorders
(4) Virus-related diseases
Which one of the following depresses brain activity and produces feelings of calmness, relaxation and drowsiness?
(1) Valium (2) Morphine (3) Hashish (4) Amphetamines
Which of the following is not the main function of lymph glands?
(1) Forming RBC (2) Destroying bacteria
(3) Forming WBC (4) Forming antibodies
Which one of the following is important as one of the first line of defence against inhaled and ingested pathogen?
(1) IgA (2) IgG (3) IgM (4) IgD
Saline solution is given to patients of cholera because
(1) prevents water loss from body
(2) NaCl function as regulatory material
(3) NaCl produces energy
(4) NaCl is antibacterial
Interferons are synthesized in response to
(1) Mycoplasma (2) Bacteria
(3) Viruses (4) Fungi
The main reason why antibiotics could not solve all the problems of bacteria mediated disease is
(1) Decreased efficiency of the immune system
(2) Insensitivity of the individual following prolonged exposure to antibiotics
(3) Development of mutant strains resistant to antibiotics
(4) Activation of antibiotics by bacterial enzymes
Carcinoma refers to
(1) Malignant tumours of the connective tissue
(2) Malignant tumours of the skin or mucous membrane
(3) Malignant tumours of the bone
(4) Benign tumours of the connective tissue
A metastatic cancerous tumour is termed ‘sarcoma’ if the disorder is in
(1) Fibroblasts (2) Circulatory system
(3) Immune system (4) Epithelial cells
Which of the following is a viral glycoprotein that plays a role in the infection of human cells by HIV?
(1) gp 120 (2)
(3) (4) Both (1) & (3)
Which of the following statement is incorrect?
(1) The antigen binding site of the antibody molecule is called ‘paratope’
(2) Toxoids provide with passive immunity
(3) ‘ATS’ anti-tetanus serum provides us with artificially induced passive immunity
(4) The first gene therapy was done for SCID in which the gene for the enzyme adenosine deaminase was introduced
The modern idea about ageing is that our body slowly loses the power of defence against the invasion of germs and pathogens. This process starts by the disappearance of which organ?
(1) Pituitary gland (2) Spleen
(3) Thymus gland (4) Parathyroid gland