ASMO Science Olympiad 2019 — Level 1 (Years 3 & 4) — State Level Question 19

Question 19

A person who is healthy will experience food poisoning if ingested food which is not fresh although food has been cooked properly. What is the factor that causes this to happens?

1. The bacteria could not be killed by heat.
2. Bacteria have became immune to the heat.
3. The bacteria produce toxins that cannot be destroyed by heat.
4. The bacteria multiply in the food.
5. None of the above.