Human Health and Disease · Question 67

At which stage of HIV infection does one usually show symptoms of AIDS?

1. When the infecting retrovirus enters host cells
2. When viral DNA is produced by reverse transcriptase
3. When HIV replicates rapidly in helper T-lymphocytes and damages large number of these
4. Within 15 days of sexual contact with an infected person

Which one of the following techniques is safest for the detection of cancers?

1. Computed tomography (CT)
2. Magnetic resonance imaging (MRI)
3. Histopathological studies
4. Radiography (X-ray)

A person suffering from a disease caused by Plasmodium, experiences recurring chill and fever at the time when

1. the parasite after its rapid multiplication inside RBCs ruptures them, releasing the stage to enter fresh RBCs.
2. the trophozoites reach maximum growth and give out certain toxins
3. the sporozoites released from RBCs are being rapidly killed and broken down inside spleen
4. the microgametocytes and megagametocytes are being destroyed by the WBCs.

Ringworm in humans is caused by :

1. Fungi
2. Viruses
3. Bacteria
4. Nematodes

Widal test is used for the diagnosis of –

1. Tuberculosis
2. Malaria
3. Typhoid
4. Pneumonia

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

1. The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers
2. AIDS patients are being fully cured cent per cent with proper care and nutrition
3. The HIV can be transmitted through eating food together with an infected person
4. Drug addicts are least susceptible to HIV infection

Select the correct statement from the ones given below :

1. Cocaine is given to patients after surgery as it stimulates recovery
2. Chewing tobacco lowers blood pressure and heart rate
3. Barbiturates when given to criminals make them tell the truth
4. Morphine is often given to persons who have undergone surgery as a pain killer

Which one of the following statements is correct?

1. Patients who have undergone surgery are given cannabinoids to relieve pain
2. Heroin accelerates body functions
3. Malignant tumours may exhibit metastasis
4. Benign tumours show the property of metastasis

Which of the following is a pair of viral diseases?

1. Ringworm, AIDS
2. Common Cold, AIDS
3. Typhoid, Tuberculosis
4. Dysentery, Common Cold

Match the disease in Column I with the appropriate items (pathogen/ prevention/ treatment) in Column II.

1. A = (ii), B = (iv), C = (i), D = (iii)
2. A = (i), B = (ii), C = (iii), D = (iv)
3. A = (ii), B = (i), C = (iii), D = (iv)
4. A = (ii), B = (iii), C = (iv), D = (i)