AQA GCSE 2020
BIOLOGY
PAPER 1
QUESTION
PAPER (2020)
, Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
GCSE
BIOLOGY
Higher Tier Paper 1H
H
Tuesday 12 May 2020 Afternoon Time allowed: 1 hour 45 minutes
Materials
For Examiner’s Use
For this paper you must have:
• a ruler Question Mark
• a scientific calculator.
1
Instructions 2
• Use black ink or black ball-point pen. 3
• Pencil should only be used for drawing. 4
• Fill in the boxes at the top of this page.
5
• Answer all questions in the spaces provided.
• If you need extra space for your answer(s), use the lined pages at the end of 6
this book. Write the question number against your answer(s). 7
• Do all rough work in this book. Cross through any work you do not want
TOTAL
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.
*jun20 4611H01*
IB/M/Jun20/E23 8461/1H
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 This question is about photosynthesis.
0 1 . 1 Complete the word equation for photosynthesis.
[2 marks]
+ → + oxygen
0 1 . 2 Describe how energy for the photosynthesis reaction is gained by plants.
[2 marks]
Students investigated the effect of temperature on the rate of photosynthesis.
The students shone light from a lamp onto pondweed and measured the volume of
oxygen produced per hour.
Table 1 shows the results.
Table 1
Rate of photosynthesis in cm3/hour
Temperature
in °C
Test 1 Test 2 Test 3 Mean
20 18.5 19.3 19.5 X
25 32.6 34.1 32.9 33.2
30 41.9 45.2 44.9 44.0
35 38.6 39.8 44.0 40.8
40 23.1 20.5 22.4 22.0
45 1.9 14.2 2.2 2.1
*02*
IB/M/Jun20/8461/1H
, 3
Do not write
outside the
box
0 1 . 3 Calculate mean value X.
[2 marks]
X= cm3/hour
The students identified one anomalous result in Table 1.
0 1 . 4 Draw a ring around the anomalous result in Table 1.
[1 mark]
0 1 . 5 Suggest one possible cause of the anomalous result.
[1 mark]
0 1 . 6 How did the students deal with the anomalous result?
[1 mark]
0 1 . 7 Give one factor the students should have kept constant in this investigation.
[1 mark]
Turn over ►
*03*
IB/M/Jun20/8461/1H
BIOLOGY
PAPER 1
QUESTION
PAPER (2020)
, Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
GCSE
BIOLOGY
Higher Tier Paper 1H
H
Tuesday 12 May 2020 Afternoon Time allowed: 1 hour 45 minutes
Materials
For Examiner’s Use
For this paper you must have:
• a ruler Question Mark
• a scientific calculator.
1
Instructions 2
• Use black ink or black ball-point pen. 3
• Pencil should only be used for drawing. 4
• Fill in the boxes at the top of this page.
5
• Answer all questions in the spaces provided.
• If you need extra space for your answer(s), use the lined pages at the end of 6
this book. Write the question number against your answer(s). 7
• Do all rough work in this book. Cross through any work you do not want
TOTAL
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.
*jun20 4611H01*
IB/M/Jun20/E23 8461/1H
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 This question is about photosynthesis.
0 1 . 1 Complete the word equation for photosynthesis.
[2 marks]
+ → + oxygen
0 1 . 2 Describe how energy for the photosynthesis reaction is gained by plants.
[2 marks]
Students investigated the effect of temperature on the rate of photosynthesis.
The students shone light from a lamp onto pondweed and measured the volume of
oxygen produced per hour.
Table 1 shows the results.
Table 1
Rate of photosynthesis in cm3/hour
Temperature
in °C
Test 1 Test 2 Test 3 Mean
20 18.5 19.3 19.5 X
25 32.6 34.1 32.9 33.2
30 41.9 45.2 44.9 44.0
35 38.6 39.8 44.0 40.8
40 23.1 20.5 22.4 22.0
45 1.9 14.2 2.2 2.1
*02*
IB/M/Jun20/8461/1H
, 3
Do not write
outside the
box
0 1 . 3 Calculate mean value X.
[2 marks]
X= cm3/hour
The students identified one anomalous result in Table 1.
0 1 . 4 Draw a ring around the anomalous result in Table 1.
[1 mark]
0 1 . 5 Suggest one possible cause of the anomalous result.
[1 mark]
0 1 . 6 How did the students deal with the anomalous result?
[1 mark]
0 1 . 7 Give one factor the students should have kept constant in this investigation.
[1 mark]
Turn over ►
*03*
IB/M/Jun20/8461/1H
