Level: JHS, Basic 7 | Subject: Integrated Science | Strand: Systems | Topic: The Human Body System (Food and Digestion)
Read the summary notes first, then try these questions. Go back to the summary notes for this topic.
Part A has 20 tick-box questions. Part B has 5 essay questions with a marking guide at the bottom.
Test Yourself: 20 Objective Questions
Tick one answer for each question, then press Review answer. If your answer is wrong, it will be marked first, then the correct answer will show in green.
1. The main reasons we need food are to get
2. Which class of food mainly gives energy?
3. Which of these is rich in carbohydrates?
4. Which class of food is needed for body building and repair?
5. Which of these is a good source of protein?
6. Kwashiorkor is a disease caused by lack of
7. Palm oil is rich in
8. Oranges and pawpaw are important mainly because they supply
9. Calcium in milk helps to build
10. Roughage in the diet helps to
11. A meal that contains all classes of food in the right amounts is a
12. Iodine solution turns blue-black when it is added to
13. To test for fats and oils, you rub the food on
14. Digestion is the
15. Saliva in the mouth begins the digestion of
16. The tube that carries food from the mouth to the stomach is the
17. The main place where digested food is absorbed into the blood is the
18. The large intestine mainly absorbs
19. Bile, which helps to digest fats, is made in the
20. Which of these helps to keep the digestive system healthy?
Essay Questions
- (a) Name six classes of food. (b) State the use of each class and give one Ghanaian example of food rich in it. (9 marks)
- (a) What is a balanced diet? (b) Name two diseases or problems that can result from poor feeding. (4 marks)
- Describe a test you can carry out to show that a piece of yam contains starch. (4 marks)
- Trace the path of a piece of bread from the mouth to the anus, naming the organs it passes through. (7 marks)
- State the roles of the liver, the gall bladder and the pancreas in digestion. State two ways of keeping the digestive system healthy. (6 marks)
Essay Questions: Marking Guide for Teachers and Parents
- (a) Any six: carbohydrates, proteins, fats and oils, vitamins, mineral salts, water, roughage (1 mark each, total 6). (b) Carbohydrates: energy, e.g. yam; proteins: growth and repair, e.g. beans; fats: energy, e.g. palm oil; vitamins: protection, e.g. orange; minerals: bones and blood, e.g. milk; water or roughage with correct use (award 3 marks for correct uses with examples).
- (a) A meal that contains all the classes of food in the right amounts (2). (b) Any two: kwashiorkor, obesity, anaemia, constipation, night blindness (1 mark each).
- Crush a small piece of yam and add a little water (1). Put it in a test tube or on a plate (1). Add a few drops of iodine solution (1). A blue-black colour shows that starch is present (1).
- Mouth, oesophagus, stomach, small intestine, large intestine, rectum, anus (1 mark each, order must be correct).
- Liver makes bile (1). Gall bladder stores bile (1). Pancreas makes enzymes that digest food (2). Any two healthy habits: wash hands, eat a balanced diet, drink clean water, chew well (1 mark each, total 2).
Education Always (education.inspiringalways.com). Original practice questions, not official WAEC or BECE questions.
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