CAMBRIDGE LOWER SECONDARY SCIENCE 8: END-OF-UNIT TEST
Name ___________________________________
Date _____________
Disclaimer: This test and mark scheme have been written by the authors.
End-of-unit test
Unit 1
1
The diagram shows two blood cells.
a
State the function of red blood cells.
[1]
_______________________________________________________________________________
b Describe the function of white blood cells.
[2]
_______________________________________________________________________________
_______________________________________________________________________________
c
Name one component of blood, other than red and white blood cells, and state its function.
[2]
_______________________________________________________________________________
_______________________________________________________________________________
2
a
Complete the word equation for aerobic respiration.
_______________+ oxygen  carbon dioxide + _______________
[1]
b In which part of a cell does aerobic respiration happen?
Circle the correct answer.
cytoplasm
c
cell membrane
[1]
chloroplast
mitochondrion
Name the part of lungs from which oxygen diffuses into the blood.
[1]
_______________________________________________________________________________
Cambridge Lower Secondary Science 8 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021
1
CAMBRIDGE LOWER SECONDARY SCIENCE 8: END-OF-UNIT TEST
3
The diagram shows a model of part of the human respiratory system.
a
In the model, the rubber that stretches represents the diaphragm.
Suggest which parts of the model represent each of these parts of the body:
the trachea _______________
the rib cage _______________
[1]
b Predict what happens when the rubber is stretched downwards.
[1]
_______________________________________________________________________________
c
The diaphragm is not the only muscle that helps to make air move into the lungs.
Name the other muscles that help this to happen.
[1]
_______________________________________________________________________________
Cambridge Lower Secondary Science 8 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021
2