Standard Science Primary 3 Diversity

Which of the following shows a HELPFUL use of bacteria?

A Bacteria causing food to rot
B Bacteria making bread rise
C Bacteria turning milk into yogurt
D Bacteria causing a sore throat
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Worked Solution

Step 1: Differentiate between harmful and helpful micro-organisms. Step 2: Certain bacteria are used in food production. Step 3: Lactobacillus bacteria are used to ferment milk into yogurt.

Correct answer: Bacteria turning milk into yogurt

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