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WorksheetsCambridge Checkpoint Science 8: Nutrition and the Digestive System
Total questions: 35
Worksheet time: 35mins
Protein is used by the body to
make new cells
provide energy
provide insulation
store energy
Carbohydrates are used by the body to
make important chemicals such as enzymes and antibodies
provide enrgy
store energy
make new cell membranes
Fat is used by the body for which two of the following functions:
make new cells
make new cell membranes
make important chemicals such as enzymes and antibodies
store energy
Which of the following are naturally occurring and can be obtained from plants and animals?
Fats
Carbohydrates
Vitamins
Minerals
Which of the following are naturally occurring and can be obtained from soil and water?
Fats
Carbohydrates
Vitamins
Minerals
Which nutrient helps to keep food moving easily through the alimentary canal?
Fats
Protein
Carbohydrates
Fibre
Vitamins and minerals
Which "nutrient" typically makes up 60-70% of the body?
Fats
Protein
Carbohydrates
Fibre
Water
Foods which are good sources of protein include:
fish, meat, beans, eggs and dairy
pasta, bread, grains, potatoes
fruits, vegetables, whole seeds
cheese, oil, butter, meat
Foods which are good sources of carbohydrates include:
fish, meat, beans, eggs and dairy
pasta, bread, grains, potatoes
fruits, vegetables, whole seeds
cheese, oil, butter, meat
Foods which are good sources of fat include:
fish, meat, beans, eggs and dairy
pasta, bread, grains, potatoes
fruits, vegetables, whole seeds
cheese, oil, butter, meat
Foods which are good sources of vitamins and minerals include:
fish, meat, beans, eggs and dairy
pasta, bread, grains, potatoes
fruits, vegetables, whole seeds
cheese, oil, butter, meat
To test whether or not a food contains starch:
test with iodine solution. If the iodine turns from blue/black to yellow/brown, it contains starch.
test with iodine solution. If the iodine turns from yellow/brown to blue/black, it contains starch.
test with Benedict's solution. If the bluish mixture changes to red upon heating, it contains starch
test with Benedict's solution. If the reddish/brown mixture changes to blue upon heating, it contains starch
To test whether or not a food contains sugar:
test with iodine solution. If the iodine turns from blue/black to yellow/brown, it contains sugar.
test with iodine solution. If the iodine turns from yellow/brown to blue/black, it contains sugar.
test with Benedict's solution. If the bluish mixture changes to red upon heating, it contains sugar
test with Benedict's solution. If the reddish/brown mixture changes to blue upon heating, it contains sugar
Having a "balanced diet" means a diet that:
has equal amounts of carbohydrates, protein, fats and sugars, fruits and vegetables
provides all the different kinds of nutrients, along with the right amount of energy your body uses each day
takes in an equal amount of food as water consumed
eating as much fruits and vegetables as Al Baik chicken and fries
What happens if you take in too many vitamins in your diet?
you develop enhanced immunity to disease
your body excretes the excess
your skin slowly turns an orange colour
your eyesight improves
Cells can get energy from which three of the following nutrients?
carbohydrates
protein
fats
vitamins and minerals
What happens if you take in too much energy-giving nutrients in your diet?
you develop an energy overload
your body excretes the excess
your body turns the extra nutrients to fat
muscle formation increases
The process by which food reaches blood cells by moving through the walls of the alimentary canal is:
absorption
diffusion
digestion
ingestion
The process in which large molecules of food is broken down into smaller ones, so they can be absorbed, is:
absorption
diffusion
digestion
ingestion
The large molecules that need to be broken down into smaller molecules, so that nutrients can be digested are
proteins
fats
fibre
starch
sugar
what is the difference between starch and sugar?
Sugar molecules are complex starch molecules (many starch molecules joined together, making it difficult to digest)
Starch molecules are complex sugar molecules (many sugar molecules joined together, making it difficult to digest)
Sugar molecules are "simple starches", (small molecules that can be digested)
Starch molecules are "simple sugars", (small molecules that can be digested)
What is the main function of enzymes found in both saliva and the small intestine?
to help kill bacteria
to move food all the way through the alimentary canal, from mouth to anus
to break down large molecules into small molecules so that they can pass through the walls of the alimentary canal
to break down large molecules into small molecules so that they can pass through the oesophagus
The order that food passes through, in the alimentary canal is:
mouth - stomach - oesophagus - small intestine - large intestine - anus
mouth - oesophagus - stomach - large intestine - small intestine - anus
mouth - stomach - small intestine - large intestine - oesophagus - anus
mouth - oesophagus - stomach - small intestine - large intestine - anus
The function of the mouth is to
break down food molecules into smaller molecules using teeth, and to kill bacteria using enzymes in saliva
break down food molecules into smaller molecules using teeth only.
break down food molecules into smaller molecules using both teeth, and break down starch into sugar using saliva
allow us to extract the maximum taste of food before they pass through the digestive system
Which part of the digestive system uses hydrochloric acid to kill micro-organisms in food, and gastric juices to break down protein?
mouth
stomach
small intestine
large intestine
liver
Which part of the digestive system collects food that cannot be digested and forms faeces?
small intestine
large intestine
liver
anus
pancreas
Which part of the digestive system finishes breaking down fats, protein and starch into small molecules, which can then be absorbed the the walls?
stomach
oesophagus
small intestine
large intestine
liver
Which parts of the digestive system absorb water?
stomach
small intestine
large intestine
liver
pancreas
What is the function of the liver?
makes bile, (which is stored in the gall bladder), but flows into the small intestine to help with digesting fats
makes juices (such as insulin), that flow into the small intestine to help digest protein, starch and fat.
has no known useful function
makes juices such as hydrochloric acid to kill micro-organisms
What is the function of the pancreas?
makes bile, (which is stored in the gall bladder), but flows into the small intestine to help with digesting fats
makes juices, that flow into the small intestine to help digest protein, starch and fat.
has no known useful function
makes juices such as hydrochloric acid to kill micro-organisms
What is the function of the appendix?
makes bile, (which is stored in the gall bladder), but flows into the small intestine to help with digesting fats
makes juices (such as insulin), that flow into the small intestine to help digest protein, starch and fat.
has no known useful function
makes juices such as hydrochloric acid to kill micro-organisms
Food does not pass through which of the following organs, in the digestive system?
stomach
liver
large intestine
pancreas
appendix
Digestion happens in the
mouth
stomach
small intestine
large intestine
Absorption happens in the
mouth
stomach
small intestine
large intestine
The best Year 8 science teacher at BISJ this year is:
Mr. Enright
Mrs. Dunsmore
Mr. Fong
Mrs. Kendrick
Dr. Pacelli
