Biology - Human Health and Disease
Exam Duration: 45 Mins Total Questions : 30
Opsonisation is carried out by
- (a)
IgM
- (b)
IgA
- (c)
IgD
- (d)
IgG
Which type of cancer can be caused by exposure to cadmium oxide over a long period of time?
- (a)
Vagina
- (b)
prostate gland
- (c)
Skin
- (d)
Lung
A disease that can be transferred from mother to child through placenta is
- (a)
German measles
- (b)
AIDS
- (c)
Syphilis
- (d)
All of these
Which one of the following is released by WBCs to set the body's thermostat at a high temperature?
- (a)
Pyrogens
- (b)
Lysozyme
- (c)
Antibodies
- (d)
Opsonins
Which One of the following is not an example of autoimmune disease?
- (a)
Multiple sclerosis
- (b)
Insulin dependent diabetes
- (c)
Rheumatatoid arthritis
- (d)
Kuru disease
ATS inoculation, soon after an injury bringing contact with solid objects, gives protection against the possible attack of
- (a)
Tetanus
- (b)
Typhoid
- (c)
Poliomyelitis
- (d)
Mumps
Diphteria antitoxin must be given within 24 hours of first appearance of the symptoms of diphtheria. Antitoxin contains
- (a)
antibiotic
- (b)
antibody
- (c)
antigen
- (d)
toxoid
Where will you look for the sporozoites of the malarial parasite?
- (a)
Saliva of infected female Anopheles mosquito
- (b)
Salivary glands of freshly moulted female Anopheles mosquito
- (c)
Spleen of infected humans
- (d)
RBCs of humans suffering from malaria
Which one of the following option gives the correct matching of a disease with its causative organism and mode of infection
- (a)
Disease Causative organism Mode of infection Typhoid Salmonella typhii With inspired air - (b)
Disease Causative organism Mode of infection Pneumonia Streptococcus pneumoniae Droplet infection - (c)
Disease Causative organism Mode of infection Elephantiasis Wuchereria bancrofti Infected water and food - (d)
Disease Causative organism Mode of infection Malaria Plasmodium vivax Bite of male Anopheles mosquito
Which of the following is not the main function of lymph glands?
- (a)
Forming RBCs
- (b)
Destroying bacteria
- (c)
Forming WBCs
- (d)
Forming antibodies
Common cold differs from pneumonia in as
- (a)
pneumonia is caused by a virus whereas common cold is caused by a bacterium
- (b)
pneumonia pathogen infects alveoli whereas common cold affects nose and respiratory passage but not the lungs
- (c)
pneumonia is a non-communicable disease whereas common cold is a communicable disease
- (d)
none of these
Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature and correctly described?
- (a)
Musca domestica - the common house lizard, a reptil
- (b)
Plasmodium falciparum - A protozoan pathogen causing the most serious type of malaria
- (c)
Felis tigris - The Indian Tiger, well protected in Gir forests
- (d)
E. coli - Full name Entamoeba coli, a commonly occurring bacterium in human intestine
Typhoid fever in human beings is caused by
- (a)
Plasmodium vivax
- (b)
Trichophyton
- (c)
Salmonella typhi
- (d)
Rhino viruses
Match column I with column II and select the correct option from codes given below.
| Column I | Column II |
| A. Sporozoites | (i) Infectious form of Plasmodium |
| B. Filariasis | (ii) Aedes mosquitoes |
| C. Typhoid | (iii) Wuchereria |
| D. Chikungunya | (iv) Widal test |
- (a)
A-(iv), B-(ii), C-(i), D-(iii)
- (b)
A-(iii), B-(iv), C-(ii), D-(i)
- (c)
A-(ii), B-(iii), C-(i), D-(iv)
- (d)
A-(i), B-(iii), C(iv), D-(ii)
Which of the following statements regarding different barriers of innate immunity is not correct?
- (a)
Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our body
- (b)
Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our body.
- (c)
Certain types of leucocytes such as polymorphonuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our body.
- (d)
Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our body.
The primary lymphoid organs are
- (a)
spleen and thymus
- (b)
bone marrow and thymus
- (c)
bone marrow and lymph node
- (d)
thymus and MALT
Read the following statements carefully.
(i) Cancer causing viruses have genes called viral oncogenes.
(ii) Malignant tumors remain confined to their original location.
(iii) Cancer cells do not exhibit contact inhibition.
(iv) X-rays and UV rays are not potent carcinogens.
(v) Cancer detection is based on biopsy.
Which of the above statements are not correct regarding cancer?
- (a)
(iii) and (v)
- (b)
(ii) and (iv)
- (c)
(ii), (iii) and (v)
- (d)
(ii), (iv) and (v)
ln humans, receptors for opioids are present in
- (a)
central nervous system
- (b)
gastrointestinal tract
- (c)
respiratory tract
- (d)
both (a) and (b)
The addictive chemical present in tobacco is
- (a)
caffeine
- (b)
nicotine
- (c)
catechol
- (d)
carbon monoxide
Following are some statements regarding the primary and secondary antibody response in humans. All the statements are correct except
- (a)
lag period (time between the introduction of antigen and appearance of antibodies in blood) in primary response is longer than that in secondary response
- (b)
predominant isotype produced in primary response is IgM while that in secondary response is IgG
- (c)
primary antibodies have a higher affinity for antigen as compared to secondary antibodies
- (d)
primary immune response is more quicker and intense than secondary immune response
Which of the following best defines an oncogene?
- (a)
An oncogene is a dominantly expressed mutation which gives a cell a growth or survival advantage
- (b)
An oncogene codes for a mutated form of a protein which forms part of a signal transduction pathway
- (c)
An oncogene codes for a protein which prevents the cell from undergoing apoptosis
- (d)
An oncogene codes for a cell cycle control protein
The chemical test that is used for diagnosis of typhoid is
- (a)
ELISA-Test
- (b)
ESR- Test
- (c)
PCR- Test
- (d)
Widal-Test
In malignant tumors, the cells proliferate, grow rapidly and move to other parts of the body to form new tumors. This stage of disease is called
- (a)
metagenesis
- (b)
metastasis
- (c)
teratogenesis
- (d)
mitosis
Assertion : Benign tumours are called neoplastic cells.
Reason : Malignant tumour remain in place to form a compact mass by a process known as metastasis.
- (a)
If both assertion and reason are true and reason is the correct explanation of assertion.
- (b)
If both assertion and reason are true but reason is not the correct explanation of assertion.
- (c)
If assertion is true but reason is false.
- (d)
If assertion is true but reason is false.
DPT vaccination provides
- (a)
Active immunity
- (b)
Passive immunity
- (c)
Nature immunity
- (d)
Both (1) & (2)
Which of the following is not an autoimmune disorder?
- (a)
Myasthenia gravis
- (b)
Rheumatoid arthritis
- (c)
Hashimoto's disease
- (d)
Adam's stoke syndrome
Which of the following cancer is opportunistic disease associated with HIV?
- (a)
Cancer of cervix
- (b)
Liver cancer
- (c)
Burkitt's lymphoma
- (d)
Kaposi's sarcoma
Mark the incorrect statement w.r.t. infection of Entamoeba histolytica
- (a)
It is a protozoan parasite of human
- (b)
It is characterized by constipation and abdominal pain
- (c)
It is a parasite in small intestine of man
- (d)
Houseflies act as mechanical carriers and serve to transmit the parasite from faces of infected person to food and food products
Which of the following drug is extracted from the latex of poppy plant Papaver somniferum, generally taken by snorting and injection, is a depress and slows down body functions?
- (a)
Cocaine
- (b)
Hashish
- (c)
Barbiturate
- (d)
Heroin
Wuchereria bancroftl, the filarial worm that causes elephantiasis belongs to phylum
- (a)
Platyhelminthes
- (b)
Aschelminthes
- (c)
Coelenterate
- (d)
Arthropoda
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