Name: ___________________ (
)
Class: ______
F3 I.S.
Remedial programme
Problem set 05/10
Date: ___________
Score:
/ 30
Unit 2 A Healthy Body
A
True or false questions (6 marks, 1 mark each)
Write ‘T’ for a true statement and ‘F’ for a false statement in the boxes provided.
1
The major function of carbohydrates is to provide energy for body activities.
2
The function of protein is to provide raw materials for growth and repair of

body tissues.

3
The function of vitamins and minerals is to keep our body healthy.

4
The three types of food additives are food smell, food colourings and food
flavourings.

5
Different people have same daily energy requirements.

6
The major function of fats is to provide dietary fibre when carbohydrates are
not enough.

B
Multiple-choice questions (6 marks, 2 marks each)
1
Choose the correct answer for each of the following questions.
1.
Which of the following statements about carbohydrates are INCORRECT?
(I) Carbohydrates are a type of food substances.
(II) Bread is rich in carbohydrates.
A.
B.
C.
D.
2
Amino acids are made up of
A.
B.
C.
D.
3
(III) Excess carbohydrates in the body will be changed into proteins.
(IV) People will suffer from colour blindness if they do not have enough carbohydrates
in their diets.
(I) and (II) only
(I) and (III) only
(II) and (III) only
(III) and (IV) only
oxygen and hydrogen only.
carbon, oxygen and hydrogen only.
carbon, nitrogen, oxygen and hydrogen only.
carbon and nitrogen only.
The table below shows the amount of some food substances in 100g of three common foods W,
X and Y.
W
X
Y
Carbohydrate/g
52
0
5.2
Fat/g
2
8.5
4.8
Protein/g
10.4
0.7
4
Calcium/g
0.1
0.02
0.15
The three kinds of food might be
W
X
Y
A.
milk
bread
butter
B.
bread
milk
butter
C.
butter
milk
bread
D.
bread
butter
milk
2
C Fill in the blanks (6 marks, 1 mark each)
Complete the following sentences.
1.
The
main
types
of
food
substances
are
___________________,
fats,
proteins,
__________________, minerals, ______________ ______________ and water.
2.
Carbohydrates can be classified into three groups: monosaccharides, disaccharides and
___________________.
3.
If a child lacks vitamins C and D, he/she may suffer from ___________________ and
___________________ respectively.
D Questions (12 marks)
1
Foods A, B and C are tested with three different types of paper. The test results are shown in the table
below.
(a)
Food item
Clinistix paper
Albustix paper
Filter paper
A
pink
green
permanent translucent
B
pink
green
no change
C
purple
yellow
no change
Which food contains glucose?
(1 mark)
……………………………………………………………………………………………...............
(b)
Which food contains both proteins and fats?
(1 mark)
……………………………………………………………………………………………...............
(c)
Can we conclude that food C contains glucose only? Why?
(2 marks)
……………………………………………………………………………………………...............
……………………………………………………………………………………………...............
3
(d)
Suggest a food test to test for the presence of starch in the foods. Describe the positive result.
(2 marks)
……………………………………………………………………………………………...............
……………………………………………………………………………………………...............
2.
Table 1 below shows the daily calcium requirement for human of different ages:
Table 1
Age
Daily calcium requirement (mg)
1 – 8 years
9 – 14 years
15 – 17 years
18+ years
pregnant women
breast-feeding women
500
700
600
500
1200
1200
Table 2 below shows some information about the make-up of 100 g of different milk products:
Table 2
Whole milk
Skimmed milk
Semi-skimmed
milk
Yogurt
Cheddar cheese
(a)
Energy (kJ)
Protein (g)
Fat (g)
Carbohydrate (g)
Calcium (g)
270
3.2
3.9
4.5
100
140
3.4
0.1
4.5
105
200
3.4
1.7
4.5
102
380
4.1
0.7
18.0
150
1700
26.0
34.0
0
800
At what age do males require the most calcium?
(1 mark)
……………………………………………………………………………………………...............
(b)
Why do
pregnant and breast-feeding women require so much calcium?
(2 marks)
……………………………………………………………………………………………...............
……………………………………………………………………………………………...............
4
(c)
How many grams of whole milk would a 10 years old child have to drink to get his daily
calcium requirement?
(1 mark)
……………………………………………………………………………………………...............
(d)
A pregnant woman wants to increase her intake of calcium, so she eats a lot of cheddar cheese
everyday to meet her needs, is it a correct way to increase calcium intake? Explain your
answer.
(1 mark)
……………………………………………………………………………………………...............
(e)
Why does skimmed milk have the lowest energy value within the milk products in the table
given?
(1 mark)
……………………………………………………………………………………………...............
- End –
5
Answers
Unit 3 Light, colors and beyond
F3 I.S.
Remedial programme
Problem set 05/10
A True or false questions (6 marks, 1 mark each)
1 T
2 T
3 T
4 F
5 T
6 F
B Multiple-choice questions (6 marks, 2 marks each)
1 D
2 C
3 D
C Fill in the blanks (6 marks, 1 mark each)
1.
2.
3.
carbohydrates
vitamins
dietary fibre
polysaccharides
scurvy
rickets
D Questions (12 marks)
Answer:
1
1. (a) C (1)
(b) A (1)
(c) No
(1)
Food C may contain other types of food substances which are not tested. (1)
(d) Iodine test
(1)
The colour of iodine solution changes from brown to dark blue. (1)
2.
(a)
(b)
(c)
(d)
9 – 14 years (1)
They provide calcium for the teeth and bone formation of the developing babies.
(2)
700 g
(1)
Not correct. Since cheddar cheese is a high fat milk product and this increases the chance of
getting heart diseases. (1)
(e) The fat content of skimmed milk is the lowest. (1)
6