Living Factories
By Mr G Davidson
1. Yeast is a type of plant called a fungus.
True
False
2. If yeast is allowed to ferment sugar, what is produced?
yoghurt
bread
alcohol
lactic acid
3. The process by which barley seeds are allowed to start germinating in order to convert starch to malotose is called .
4. The sugar found in milk is called
glucose
maltose
lactose
sucrose
5. Whey is the solid formed when milk coagulates.
6. What do we call the process where milk is heated to 73oC for 15 seconds to kill harmful micro-organisms?
7. The enzyme which separates milk into curds and whey is called .
8. Bicarbonate indicator is used to test for the presence of carbon dioxide. What is the colour change?
clear to milky
yellow to red
brown to blue/black
red to yellow
9. Alcohol is separated from water by a process called distillation.
10. What prevents the growth of some micro-organisms?