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Teeth break up food into smaller pieces.
Digestion 1
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Digestion is the breaking down of food from large insoluble molecules into smaller soluble molecules.
See how much you know in our first Science quiz all about digestion. Try not to make a meal of it.......
1.
Which of the following is NOT a type of tooth?
Canine
Feline
Incisor
Molar
Teeth break up food into smaller pieces
2.
Saliva is mixed with the food. It contains .......
acid
amylase
lipase
protease
Amylase starts digesting starch
3.
Protein is broken down into .......
amino acids
fatty acids
glucose
glycerol
4.
Lipase breaks down .......
fat
fibre
protein
starch
5.
At which range of temperatures do enzymes work best?
20-30°C
30-40°C
40-50°C
60-70°C
Normal body temperature is 37°C
6.
Which of the following organs is not part of the digestive system?
Heart
Liver
Pancreas
Stomach
7.
Starch is broken down into .......
amino acids
fatty acids
glucose
glycerol
Glucose is a small molecule which can be absorbed
8.
Protease breaks down .......
fat
fibre
protein
starch
9.
Which of the following organs is not part of the digestive system?
Gut
Large intestine
Lungs
Small intestine
10.
Which of the following is NOT an enzyme?
Bile
Carbohydrase
Lipase
Protease
Enzymes break down large molecules
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