Lesson 9 ·Class 9 · Economic Importance of Bacteria and Fungi · Match Lab
Bacterial Diseases
The germ, and the illness it causes.
Match each disease to the bacterium that causes it.
Matched 0/7
Free play — tap an item on the left, then its partner on the right; each link tells you why. Switch to when you're ready to test yourself.
Notice the routes: water-borne (cholera, typhoid), airborne (TB, diphtheria, pneumonia), wound (tetanus), vector (plague). The route decides the prevention.
What this lesson covers
Challenges to clear
- Match every disease.
- Connect tetanus to how the bacterium gets in — not by air or water.
The task
Match each disease to the bacterium that causes it.
What this lesson covers
- Cholera — Vibrio cholerae — spread by contaminated water (Severe watery diarrhoea; the danger is dehydration.)
- Typhoid — Salmonella typhi — spread by contaminated food and water (Prolonged fever; diagnosed by the Widal test.)
- Tuberculosis — Mycobacterium tuberculosis — spread by droplets in the air (Attacks the lungs; prevented by the BCG vaccine.)
- Tetanus — Clostridium tetani — enters through a deep wound (Its toxin causes lockjaw and violent muscle spasms.)
- Diphtheria — Corynebacterium diphtheriae — spread by droplets (A membrane forms in the throat and can block breathing.)
- Pneumonia — Streptococcus pneumoniae — inflames the alveoli (The air sacs fill with fluid, so gas exchange fails.)
- Plague — Yersinia pestis — carried by rat fleas (Rat control is therefore the key to preventing it.)
Hint
Notice the routes: water-borne (cholera, typhoid), airborne (TB, diphtheria, pneumonia), wound (tetanus), vector (plague). The route decides the prevention.