Question 1
Question
A food substance found in many foods is:
Answer
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A carbohydrate.
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B chalk.
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C energy.
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D carbon dioxide.
Question 2
Question
What is used to test a food for starch?
Answer
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A iodine solution
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B potatoes
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C Benedict’s solution
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D Fehling’s solution
Question 3
Question
One of the ways in which water is used by the body is as:
Answer
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A a source of fibre.
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B a source of energy.
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C a solid.
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D a solvent.
Question 4
Question
Fibre in your diet helps to stop:
Answer
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A you lying.
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B scurvy.
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C constipation.
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D digestion.
Question 5
Question
You have a balanced diet when:
Answer
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A the mass of all the food you eat in a day adds up to 100 kg.
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B the mass of all the food you eat one day is equal to the mass you eat the
next day.
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C you eat a wide range of different foods to give your body all the things it needs.
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D you only eat fish on Fridays.
Question 6
Question
Which of these people will need to eat the most food in a day?
Answer
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A a 3-year-old child
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B an 85-year-old woman
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C a 35-year-old man, who works outside cutting down trees
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D a 25-year-old woman, who works in an office using a computer.
Question 7
Question
Meats are a good source of which food substance?
Answer
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A fibre
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B protein
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C oxygen
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D vitamins
Question 8
Question
Why do we need protein in our food?
Answer
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A It is a good source of energy.
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B It is used for growth and repair.
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C It is full of vitamins.
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D It helps food to pass through the gut smoothly.
Question 9
Question
Which organ is labelled X in the drawing below?
Answer
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A small intestine
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B stomach
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C liver
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D mouth
Question 10
Question
In the diagram what does the organ labelled X do?
Answer
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A It mixes up food with acid and breaks down proteins.
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B It adds vitamins to the food.
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C It takes the water out of the food.
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D It stores waste food until it can be removed from the body.
Question 11
Answer
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A soluble food substances are made into insoluble ones.
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B insoluble food substances are broken up into soluble ones.
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C food is stored inside the body until it is needed.
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D waste food is removed from the body.
Question 12
Question
The main chemicals used to digest foods are:
Answer
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A vitamins.
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B salivas.
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C digestifs.
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D enzymes.
Question 13
Question
Which label shows the place where digested food is taken into the blood?
Question 14
Question
The drawing shows a model gut. Which part represents the inside of the small intestine?
Question 15
Question
The enzymes in humans work best at body temperature. What temperature is this?
Answer
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A 37 °C
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B 0 °C
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C 100 °C
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D 98 °C
Question 16
Question
The pH of the mouth is about pH 7. The conditions that enzymes in the mouth work best at are:
Answer
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A neutral.
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B acidic.
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C alkaline.
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D basic.
Question 17
Question
When digested food is taken into the blood, it is said to be:
Answer
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A egested.
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B ingested.
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C absorbed.
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D insoluble.
Question 18
Question
Digested food is carried around the body in the:
Answer
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A digestive system.
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B circulatory system.
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C breathing system.
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D nervous system.
Question 19
Question
What is digested food used for inside our bodies?
Answer
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A to provide energy only.
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B to provide energy and chemicals to make new substances.
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C to help us go to the toilet more easily.
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D to provide substances to make sure that the blood does not become too runny.
Question 20
Question
What job does an artery do?
Answer
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A carries water to be mixed with blood.
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B carries blood to the heart.
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C carries blood away from the heart.
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D carries blood to the brain only.