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प्रश्न
Why are antibiotics not effective for viral disease?
उत्तर
Antibiotics work by blocking the biosynthetic pathways of the pathogen such as bacteria, without affecting the diseased person. In the case of viruses, they have very few biochemical pathways of their own. They use the metabolic machinery of the host and then reproduce. Thus, antibiotics cannot block any of their own biochemical pathways and are not effective for viral diseases.
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संबंधित प्रश्न
Name the nutrient lacking in one’s diet if a person suffers from:
- Haemorrhage
- Dehydration
- Paralysis
- Tooth decay
- Skin diseases
Give the names of five non-infectious diseases other than given in the lesson.
Fill in the blanks by selecting suitable words given below:
Deficiency of Vitamin D causes ______ in children.
Mention the food constituents which may be lacking in one’s diet, in case of the following:
A person suffering from scurvy.
Mention the food constituents which may be lacking in one’s diet, in case of the following:
A person suffering from poor eyesight.
Multiple choice questions. Tick (✓) the correct choice:
Which of the following diseases is transmitted by a carrier?
Find the odd one out, giving reasons:
Write a brief account on the following disease:
Diphtheria
Many skin diseases are caused by ______.
Match the causative organisms with their diseases.
| Column I | Column II | Column III |
|
A. Haemophilus influenza |
1. Malignant malaria | l. Widal test |
| B. Entamoeba histolytica | 2. Elephantiasis | m. Blood test |
| C. Plasmodium falciparum | 3. Pneumonia | n. Stool test |
| D. Wuchereria bancrofti | 4. Typhoid | o. X-ray |
| E. Salmonella typhi | 5. Amoebiasis | p. Peripheral blood test |
