Download Remedial Set 8

Name: ___________________ (
)
Class: ______
F1 I.S.
Remedial programme
Problem set 08/10
Date: ___________
Score:
/ 30
Unit 3 Cells and Human Reproduction
A
True or false questions (5 marks, 1 mark each)
Write ‘T’ for a true statement and ‘F’ for a false statement in the boxes provided.
1
The image of the letter ‘d’ observed under a light microscope looks like the letter ‘b’.
2
Both an animal cell and a plant cell have a cell wall.
3
Cell membrane can protect a cell effectively.
4
Animal cells do not have vacuoles.
5
The total magnification of an object seen under microscope is the sum of the




magnifications of the eyepiece and objective.
B
Multiple-choice questions (7 marks, 1 mark each)
Choose the correct answer for each of the following questions.
1
If the magnification of an eyepiece is 10 and that of an objective is 40, then the total
magnification is:
A
B
C
D
30
50
400
500

1
2
An object is 2 mm long. When it is observed under a microscope, what will be the
length of its image if the magnification of both the eyepiece and the objective are 10?
3
*4
5
A
12 mm
B
20 mm
C
200 mm
D
2000 mm

Which of the following description about a cell is INCORRECT?
A
All human cells contain a cell membrane.
B
All living things are made up of cells.
C
All cells are ball-shaped.
D
Different kinds of human cells have different functions.

Which of the following structures is not always found in plant cells?
A
Chloroplast
B
Cytoplasm
C
Cell wall
D
Cell membrane

The diagram below shows a typical plant cell.
Which of the following combinations is correct?
X
Y
Z
A
B
C
D
Cell membrane
Cytoplasm
Cell wall
Cell wall
Cytoplasm
Cell wall
Cell membrane
Cytoplasm
Cell wall
Cell membrane
Cytoplasm
Cell membrane

2
6
*7
C
Which of the following statements about daughter cells is INCORRECT?
A
The daughter cells have the same genetic materials.
B
The size of the daughter cells is double of that of the original cell.
C
The daughter cells can divide.
D
The daughter cells are produced as a result of cell division.

A certain kind of cell divides once every 30 minutes. How many cells are there after
three hours starting from one single cell?
A
6
B
8
C
32
D
64

Fill in the blanks (6 marks, 1 mark each)
Complete the following sentences with suitable words.
1
The basic unit of living things is the ____________________.
2
____________________ is the apparatus used to observe cells and other tiny objects.
3.
The image of an object seen under a microscope is inverted and ____________________ when
compared with the object.
4.
Both a typical animal cell and a typical plant cell have structures including the nucleus, the
____________________ and the ____________________ ____________________.
5.
In the process of ____________________ ____________________, a cell divides into two new
cells.
3
D
Questions (12 marks)
1
The diagram below shows a microscope.
a
b
Name parts A to D.
(4 marks)
A:
____________________
B:
____________________
C:
____________________
D:
____________________
Calculate the total magnification of the microscope if the magnification of part E is 10 and
that of part A is 40.
(2 marks)
………………………………………………………………………………………………….
c
The letter ‘j’ is observed under the microscope. Draw the image of the letter below.
(1 marks)
4
2
Peter observed some corneal cells on the slide under the microscope and drew one of them as
shown. However, he forgot the names of cell structures and only labelled the diagram with
letters.
a
Name structures B and C.
B:
d
____________________
(2 marks)
C:
____________________
State ONE function of structure A.
(1 mark)
………………………………………………………………………………………………….
………………………………………………………………………………………………….
c
Suggest TWO structures that cannot be found in this cell but can be found in a plant cell.
(2 marks)
………………………………………………………………………………………………….
………………………………………………………………………………………………….
- END -
5
Answers
F1 I.S.
Remedial programme
Problem set 08/10
Unit 3 Cells and Human Reproduction
A True or false questions (5 marks, 1 mark each)
1 F
2 F
3 F
4 F
B Multiple-choice questions (7 marks, 1 mark each)
1 C
2 C
3 C
4 A
6 B
7 D
C
1
2
3
4
Fill in the blanks (6 marks, 1 mark each)
cell
Microscope
magnified
cytoplasm
cell membrane
5
cell division
D
1
Questions (12 marks)
a A: objective
B: stage
C: diaphragm
D: mirror
b
c
(10)  (40)
= 400
5 F
5 C
1m
1m
1m
1m
1m
1m
1m
6
2
a
b
B: nucleus
1m
C: cytoplasm
1m
It surrounds the cytoplasm and gives shape to the cell.
1m
It controls the movement of materials into and out of the cell.
c
cell wall / chloroplast / large vacuole (any two)
2m
7