GCSE
COMBINED SCIENCE: SYNERGY
Higher Tier Paper 1 Life and Environmental Sciences
H
Friday 10 May 2024 Morning Time allowed: 1 hour 45 minutes
Materials For Examiner’s Use
For this paper you must have:
Questio Mark
a ruler
n
a protractor
1
a scientific calculator
the periodic table (enclosed) 2
the Physics Equations Sheet (enclosed). 3
Instructions 4
Use black ink or black ball-point pen. 5
Pencil should only be used for drawing.
6
Fill in the boxes at the top of this page.
Answer all questions in the spaces provided. Do not write outside 7
the box around each page or on blank pages. 8
If you need extra space for your answer(s), use the lined pages at
9
the end of this book. Write the question number against your
answer(s). 10
Do all rough work in this book. Cross through any work you do
TOTAL
not want to be marked.
In all calculations, show clearly how you work out your answer.
Information
The maximum mark for this paper is 100.
The marks for questions are shown in brackets.
You are expected to use a calculator where appropriate.
You are reminded of the need for good English and clear presentation in your answers.
4651
(JUN24 H01) G/LM/Jun24/G4001/E5
,8465/1H
, 2
Do not
box
Bacteria can cause disease.
0 1
Bacterial cells do not have a
nucleus.
0 1 . 1 Which term describes bacterial
[1 mark]
cells? Tick () one box.
Eukaryotic
Fungal
Prokaryotic
0 1 . 2 Bacterial cells have no nucleus and are smaller than animal cells.
Give one other difference between bacterial cells and animal cells.
[1 mark]
(0
2) G/
, 3
Do not
box
Escherichia coli (E. coli) is a type of
bacterium.
E. coli causes symptoms of food
poisoning.
0 1 .3 Water companies sterilise rain water to produce drinking
water.
The drinking water is then transported to homes in
underground pipes. Flooding can cause contamination of the
drinking water by E. coli.
[1 mark]
Suggest how people should treat drinking water at home if
there is a risk of E. coli contamination.
Question 1 continues on the next page
(0
3) G/
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