Name :………………………..
Form:……………………
Chapter 2 – Cell As A Unit Of Life 1. Diagram 1 shows a plant cell.
P: __________________ Q : ______________ R: _______________
Diagram 1 ( a ) On Diagram 1 ,label structures P , Q and R using the following words.
Nucleus
Cell wall
Chloroplast ( 3 marks )
( b ) Draw lines to show the correct match between the structures and their functions. Structure
Function
P
Regulates movement of substances in and out of the cell.
Q
Protects and maintains the shape of the cell. Controls all activities of the cell.
R Carries out photosynthesis. ( 2 marks)
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2. Diagram 2 shows cells K and L .
Q : ___________
Cell K : ______________________
Cell L : ______________________
Diagram 2 (a)
Name cells K and L in the spaces provided in Diagram 2.
( 2 marks )
(b)
Q controls all cell activities. Label Q in Diagram 2.
( 1 mark )
(c)
Based on structures R or S in cell L , complete Table 2.1
Name of structure
Function of structure
Table 2.1 ( 2 mark )
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3. Diagram 3 shows an animal cell and a plant cell.
Animal cell
Plant cell Diagram 3
( a ) On Diagram 3, label the common structures in both cells using the following words.
Nucleus
Cell Membrane
Cytoplasm
( 3 marks ) (b)
Give three differences between an animal cell and a plant cell. Animal cell
Plant cell
( 3 marks )
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4. Diagram 4 shows two types of cells.
P : _____________________
Q : _______________________
Diagram 4 ( a ) Name cells P and Q in the spaces provided in Diagram 4.
( 2 marks )
( b ) R controls all cell activities . Mark R of cells P and Q on Diagram 4. ( 1 mark ) ( c ) State two differences between cells P and Q. Cell P
Cell Q
( 2 marks )
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5. Diagram 5 shows two samples of human cells.
X
Y
Diagram 5 ( a) What is X and Y ? X : ………………………………………………………………. Y : ………………………………………………………………. ( 2 marks ) ( b) State the function of the human cells given. ( i ) X : …………………………………………………………….. ( ii) Y : …………………………………………………………….. ( 2 marks ) Cell
P
Q
System
Organism
( b) Give an example for each P and Q? P : ……………………………………………………………… Q : ………………………………………………………………. ( 2 marks)
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6.
Diagram 6.1 shows the three types of cells in the human body.
Diagram 6.1 ( a ) Name each type of cell i) J :____________________________________________________________ ii) K:____________________________________________________________ iii) L :____________________________________________________________ ( 3 marks ) ( b ) Name the human body system formed by each type of cell. i) J:__________________________________________________________ ii) K:_________________________________________________________ iii) L :_________________________________________________________ ( 3 marks )
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7.
Diagram 7 shows two types of blood cells in the human body.
S
T Diagram 7
(a)
Name blood cells S and T. S :
……………………………………………………………………….
T :
……………………………………………………………………… ( 2 marks )
(b)
Based on blood cell S and T , draw lines to show the correct match between the structures and their functions. Structure
Function
Carries oxygen to all parts of the body. S
Sends information in the body.
T Protects the body from dangerous microorganisms ( 2 marks )
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8. Diagram 8 shows the various types of system found in the human body.
P : ________________
Q : ________________
R : _________________
Diagram 8 (a)
On Diagram 8 , label the system P , Q and R using the following words.
Skeletal System
Digestive system
Respiratory System
( 3 marks ) (b)
State the functions of the systems in Diagram 7. ( i ) P : …………………………………………………………………………. ………………………………………………………………………… ( ii ) Q : ………………………………………………………………………… ………………………………………………………………………… ( iii ) R : ……………………………………………………………………….. ……………………………………………………………………….. ( 3 marks )
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9. ( a ) ( i ) Diagram 9 shows some examples of the organisation of cells in the human body. Which of the following is an organ ? Tick ( √ ) in the box provided.
Diagram 9 ( 1 mark)
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( ii )
Circle the words in the box below to show two other examples of organs.
ovum
muscle
nose
lungs ( 2 marks )
( b ) Draw lines to match each type of cell with its function.
CELL
FUNCTION
Carries oxygen to all parts of the body.
Sends information in the body.
Destroys bacteria.
Involved in reproduction
( 3 marks )
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10. Diagram 10 shows a picture of microorganisms. R , S , T and U.
X
S :
R:
T :
Euglena
U: Diagram 10
( a ) Label Diagram 10 with the information provided in the box below.
Paramecium
Spirogyra
Ameoba
( 3 marks )
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(b)
U can make its own food. Explain why. ………………………………………………………………………………. ………………………………………………………………………………. ( 1 mark )
(c)
State the function of X ……………………………………………………………………………….. ………………………………………………………………………………. ( 1 mark)
11.
Diagram 11 below shows the microorganisms of J , K , L , M ,N and O.
J
K
L
M
N
O
Diagram 11 ( a ) Which organisms consist of one cell only? …………………………………………………………….. ………….. ( 1 mark ) ( b ) Which organism can make their own food?
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…………………………………………………………………………. (1 mark ) ( c ) Which organism can change its shape? ……………………………………………………………….. ……….. (1 mark ) ( d ) What is the difference between unicellular and multicellular organisms? …………………………………………………………………………..(1 mark ) 12 . The information below shows a variety of organisms
(a)
Euglena
Cat
Chlamydomonas
Starfish
Amoeba
Fern
Paramecium
Butterfly
Hydra
Yeast
Classify all the above organisms into two groups as below
I. Unicellular organism
II. Multicellular organism
•
…..………………
•
…..………………
•
..…………………
•
..…………………
•
..…………………
•
..…………………
•
………………….
•
………………….
• …………………. ……………………
•
…………………. ( 5 marks )
b. State the meaning of… i. Unicellular organism ………………………………………………………….. ………..(1 marks ) ii. Multicellular organism ……………………………………………………………………..(1 marks )
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13.
Diagram 13 shows four types of cells ,J , K , L and M which are found in living organisms.
J
K
L
M
Diagram 13 ( a ) Observe the cells in Diagram 13. Based on your observation, state one characteristic of each cells J , K , L and M. J : ……………………………………………………………………………… K : …………………………………………………………………………….. L:
…………………………………………………………………………….
M : ……………………………………………………………………………. ( 4 marks )
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(b)
Classify cells J , K , L and M in Diagram 13 into two groups based on their common characteristics. Write letters of the cells belonging to each group.
J, K, L, M, N and O
Group 1
Group 2
Common characteristics
Letters of the cells
( 4 marks )
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14. Diagram 14 shows five types of organisms J , K , L , M ,N and O.
J
K
L
M
N
O
Diagram 14 ( a ) Observe the cells in Diagram 14. Based on your observation, state one characteristic of each cells J , K , L and M. J : ……………………………………………………………………………… K : …………………………………………………………………………….. L:
…………………………………………………………………………….
M : ……………………………………………………………………………. ( 4 marks )
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a. Classify organisms J, K , L ,M ,N and O in diagram 13 into two groups based on their common characteristic. Name the organism belonging to each group.
J, K, L, M, N and O
Common characteristics
Group 1
Group 2
Name of the organisms
( 4 marks )
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