Question

Which of the following statement in correct about bacteria

Answer 1

Bacteria are different biological cells. They include a large domain of prokaryotic microorganisms. A few micrometers in length, bacteria maintain several shapes, from spheres to rods and spirals.

Option A – All types of bacteria cause food poisoning

Not all bacteria cause food poisoning. Coli, Listeria, Norovirus, Salmonella.

Option B - Freezing extends the shelf life of food by killing bacteria

Freezing does not destroy germs and bacteria. Rather, it will virtually put them into hibernation. They are passive when the food is frozen and "wake up" once the food is thawed. However, once it is thawed, and especially if it is left at room temperature, the bacteria will come back with a vengeance.

Option C – Bacteria grow fastest when warm

Bacteria grow quickly when warm. Food poisoning bacteria grow best at 37°C, although they can grow between 5°C and 63°C. Later, bacterial growth can be sudden.

Virtually all eukaryotic organisms need oxygen to grow, and many types of bacteria can also grow under anaerobic conditions.

So the correct answer is C- 'Bacteria grow fastest when warm'

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