Yoghurt

Question 1

Bacteria ferment ________ to produce ___________

Answer 1

Milk

Yoghurt

Question 2

What is fermentation

Answer 2

When microorganisms break sugars down to release energy

Question 3

Fermentation is when microorganisms break down _________ to release energy - usually by _____________ _____________

Answer 3

Sugars

Anaerobic respiration

Question 4

Yoghurt is basically __________ milk

Answer 4

Fermented milk

Question 5

How yoghurt is made:

1. Equipment is _____________ to kill off any unwanted ___________________
2. The milk is _______________ (heated up to 72°C for 15 seconds) - again, to kill off any unwanted ________________
3. _______________ _____________ are added, and the mixture is ______________ (heated to about 40°C) in a vessel called a ________________
4. The bacteria ferment the __________ sugar in the milk to form _________ acid
5. ___________ acid causes the milk to ________ and solidify into yoghurt
6. Finally flavours and colour are added and the yoghurt is packaged

Answer 5

Sterilised
Microorganisms
Pasteurized
Microorganisms
Lactobacillus bacteria
Incubated
Fermenter
Lactose
Lactic acid
Clot