Human Health and Disease · Question 54

Identify the molecules (a) and (b) shown below and select the right option giving their source and use. [figure]

1. Molecule (b) Heroin, Source Cannabis sativa, Use Depressant and slows down body functions
2. Molecule (a) Morphine, Source Papaver somniferum, Use Sedative and pain killer
3. Molecule (a) Cocaine, Source Erythroxylum coca, Use Accelerates the transport of dopamine
4. Molecule (b) Cannabinoid, Source Atropa belladonna, Use Produces hallucinations

Which one of the following statements is correct with respect to immunity?

1. Rejection of a kidney graft is the function of B-lymphocytes.
2. Preformed antibodies need to be injected to treat the bite by a viper snake.
3. The antibodies against smallpox pathogen are produced by T-lymphocytes
4. Antibodies are protein molecules, each of which has four light chains.

Motile zygote of Plasmodium occurs in

1. Human liver
2. Salivary glands of Anopheles
3. Human RBCs
4. Gut of female Anopheles

Common cold differs from pneumonia in that

1. Pneumonia is a communicable disease whereas the common cold is a nutritional deficiency disease
2. Pneumonia can be prevented by a live attenuated bacterial vaccine whereas the common cold has no effective vaccine
3. Pneumonia is caused by a virus while the common cold is caused by the bacterium Haemophilus influenzae
4. Pneumonia pathogen infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs

Which one of the following is not a property of cancerous cells whereas the remaining three are ?

1. They do not remain confined in the area of formation
2. They divide in an uncontrolled manner
3. They compete with normal cells for vital nutrients
4. They show contact inhibition

Cirrhosis of liver is caused by the chronic intake of

1. Cocaine
2. Alcohol
3. Tobacco (Chewing)
4. Opium

Widal Test is carried out to test :

1. HIV/AIDS
2. Typhoid fever
3. Malaria
4. Diabetes mellitus

In which one of the following options the two examples are correctly matched with their particular type of immunity?

1. array|l|l| Examples & Types of immunity \ Polymorphonuclear leukocytes and monocytes & Cellular barriers \ array
2. array|l|l| Examples & Types of immunity \ Anti-tetanus and antisnake bite injection & Active immunity \ array
3. array|l|l| Examples & Types of immunity \ Saliva in mouth and Tear in eyes & Physical barriers \ array
4. array|l|l| Examples & Types of immunity \ Mucus coating of epithelium lining the urinogenital tract and the HCl in stomach & Physiological barriers \ array

Which one of the following options gives the correct matching of a disease with its causative organism and mode of infection?

1. Disease Pneumonia, Causative Organism Streptococcus pneumoniae, Mode of Infection Droplet infection
2. Disease Malaria, Causative Organism Plasmodium vivax, Mode of Infection Bite of male Anopheles mosquito
3. Disease Elephantiasis, Causative Organism Wuchereria bancrofti, Mode of Infection With infected water and food
4. Disease Typhoid, Causative Organism Salmonella typhi, Mode of Infection With inspired air

Common cold is not cured by antibiotics because it is:

1. caused by a Gram-positive bacterium
2. caused by a Gram-negative bacterium
3. not an infectious disease
4. caused by a virus