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Science: Middle School: Grades 6, 7 and 8 Quiz - Digestion 1 (Questions)

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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.......

Which of the following is NOT a type of tooth?

[ ]	Canine
[ ]	Feline
[ ]	Incisor
[ ]	Molar

Saliva is mixed with the food. It contains .......

[ ]	acid
[ ]	amylase
[ ]	lipase
[ ]	protease

Which of the following is NOT an enzyme?

[ ]	Bile
[ ]	Carbohydrase
[ ]	Lipase
[ ]	Protease

At which range of temperatures do enzymes work best?

[ ]	20-30°C
[ ]	30-40°C
[ ]	40-50°C
[ ]	60-70°C

Protease breaks down .......

[ ]	fat
[ ]	fibre
[ ]	protein
[ ]	starch

Lipase breaks down .......

[ ]	fat
[ ]	fibre
[ ]	protein
[ ]	starch

Starch is broken down into .......

[ ]	amino acids
[ ]	fatty acids
[ ]	glucose
[ ]	glycerol

Protein is broken down into .......

[ ]	amino acids
[ ]	fatty acids
[ ]	glucose
[ ]	glycerol

Which of the following organs is not part of the digestive system?

[ ]	Heart
[ ]	Liver
[ ]	Pancreas
[ ]	Stomach

10.

Which of the following organs is not part of the digestive system?

[ ]	Gut
[ ]	Large intestine
[ ]	Lungs
[ ]	Small intestine

Science: Middle School: Grades 6, 7 and 8 Quiz - Digestion 1 (Answers)

Which of the following is NOT a type of tooth?

[ ]	Canine
[x]	Feline
[ ]	Incisor
[ ]	Molar

Teeth break up food into smaller pieces

Saliva is mixed with the food. It contains .......

[ ]	acid
[x]	amylase
[ ]	lipase
[ ]	protease

Amylase starts digesting starch

Which of the following is NOT an enzyme?

[x]	Bile
[ ]	Carbohydrase
[ ]	Lipase
[ ]	Protease

Enzymes break down large molecules

At which range of temperatures do enzymes work best?

[ ]	20-30°C
[x]	30-40°C
[ ]	40-50°C
[ ]	60-70°C

Normal body temperature is 37°C

Protease breaks down .......

[ ]	fat
[ ]	fibre
[x]	protein
[ ]	starch

Lipase breaks down .......

[x]	fat
[ ]	fibre
[ ]	protein
[ ]	starch

Starch is broken down into .......

[ ]	amino acids
[ ]	fatty acids
[x]	glucose
[ ]	glycerol

Glucose is a small molecule which can be absorbed

Protein is broken down into .......

[x]	amino acids
[ ]	fatty acids
[ ]	glucose
[ ]	glycerol

Which of the following organs is not part of the digestive system?

[x]	Heart
[ ]	Liver
[ ]	Pancreas
[ ]	Stomach

10.

Which of the following organs is not part of the digestive system?

[ ]	Gut
[ ]	Large intestine
[x]	Lungs
[ ]	Small intestine