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प्रश्न
Becoming exposed to or infected with an infectious microbe does not necessarily mean developing a noticeable disease. Explain.
उत्तर
Microbes of different diseases are always present in our surrounding environment and we are also prone to coming in contact with persons suffering from infectious diseases directly or indirectly. But, because of a strong immune system and the presence of antibodies against specific diseases we do not necessarily develop that disease.
The immune system of our body fights back the pathogens entering the body and most often successfully removes them. In this way, our body remains protected from diseases. Antibodies to fight pathogens may develop in a natural way or maybe produce inside the body through vaccination.
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संबंधित प्रश्न
Write very briefly about the following:
BCG
Put a tick mark (✓) against the correct alternative in the following statement:
Which one of the following vitamin deficiency diseases can be cured by eating a diet which includes carrot, yellow fruits, vegetables, butter, milk, fish?
Name the following:
A disease caused due to Plasmodium
Name the following:
Any three water-borne disease
Given below is a crossword puzzle. Read the clues across and clues down, and fill up the blank squares. Check up your performance with the correct solution given at the end.
Clues across
1. Category of pathogen that causes diseases, like common cold and mumps.
5. This is the vaccine for preventing tuberculosis.
6. An organ usually affected by tuberculosis
7. Jumbled spelling of one of the most common insect which visits our exposed foods and contaminates them.
8. Cover this part of your body by a handkerchief while sneezing to prevent droplet infection to others.
9. These may readily grow in your hair, if you do not wash it regularly.
10. A disease that weakens body’s defence system against infections.
Clues down
1. Germ or germ-substance introduced into the body to prevent occurrence of an infectious disease.
2. A disease caused by an infected dog, and which affects the central nervous system.
3. A disease in which the eyes, the skin and the urine turn yellow.
4. The disease pertussis is popularly known as whooping
| 1 V | 2 | U | 3 | 4 | |||
| A | O | ||||||
| 5 B | U | ||||||
| 6 L | G | ||||||
| 7 I | S | F | H | ||||
| 8 | S | I | |||||
| E | 9 | I | C | ||||
| 10 A | D | E |
Cause of obesity.
Find the odd one out, giving reasons:
Mention the food constituents which may be lacking in one’s diet, in case of the following:
A child having rickets.
Name few diseases caused by malfunctioning of body organs.
Give two examples for each of the following
Chronic diseases
