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प्रश्न
Where do the following events in the life cycle of Plasmodium takes place?
a) Fertilization - _________
b) Development of gametocytes - __________
c) Release of sporozoites - ________
d) Schizogony - _________
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उत्तर
a) Fertilization - Gut of mosquito
b) Development of gametocytes - Human RBC’s
c) Release of sporozoites - From Mosquito to the human blood
d) Schizogony - Human liver cells
संबंधित प्रश्न
Describe the asexual and sexual phases of life cycle of Plasmodium that causes malaria in humans
What are the various public health measures, which you would suggest as safeguard against infectious diseases?
How does the transmission of the following disease take place?
Amoebiasis
An EEG represents spontaneous electrical activity of the:
(i) Kidney
(ii) Spinal cord
(iii) Heart
(iv) Brain
Mention the causative agent and the preventive measures for the following: Pneumonia.
Mention any four methods involved in the treatment of cancer.
Which of the following disease is spread through droplet nuclei?
Write the scientific name of the filarial worm that causes filariasis.
| Diseases | Causative agent | Symptoms |
| Ascariasis | Ascaris | |
| Trichophyton | Appearance of dry, scaly lesions on various parts of the body | |
| Typhoid | High fever, weakness, headache, stomach pain and constipation. | |
| Pneumonia |
Why do you think it is not possible to produce vaccine against 'common cold'?
Leishmaniasis is a disease caused by a protozoan parasite transmitted by biting of ______.
Flemming's used ______ bacterium culture during the discovery of penicillin.
Ringworm in humans is caused by:
Certain pathogens are tissue/organ specific. Justify the statement with suitable examples.
The following table shows certain diseases, their causative organisms and symptoms. Fill the gaps.
| Name of the Disease | Causative organism | Symptoms | |
| (i) | Ascariasis | Ascaris | ______ |
| (ii) | ______ | Trichophyton | Appearance of dry, scaly lesions on various parts of the body |
| (iii) | Typhoid | ______ | High fever, weakness, headache, stomach pain, constipation. |
| (iv) | Pneumonia | Streptococcus pneumoniae | ______ |
| (v) | ______ | Rhino viruses | Nasal congestion and discharge, sorethroat, cough, headache |
| (vi) | Filariasis | ______ | Inflammation in lower limbs |
A patient complains of suffering from constipation, stomach ache, stool with blood clots and excess mucous. The physician diagnosed it as amoebiasis, after stool test.
- Write the scientific name of the microbe identified in the stool sample.
- How do you think, the patient must have contracted it?
- Write your suggestions to the patient to avoid infection in future.
“Plasmodium protozoan needs both a mosquito and a human host for its continuity.” Explain.
Write the mode of transmission for the following diseases:
Typhoid
Write the mode of transmission for the following diseases:
Filariasis
Match List I with List II.
| List I | List II |
| A. Common Cold | I. Plasmodium |
| B. Haemozoin | II. Typhoid |
| C. Widal test | III. Rhinoviruses |
| D. Allergy | IV. Dust mites |
Choose the correct answer from the options given below:
