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Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel
International GCSE (9–1)
Friday 8 January 2021
Morning (Time: 2 hours) Paper Reference 4BI1/1BR 4SD0/1BR
Biology
Unit: 4BI1
Science (Double Award) 4SD0
Paper: 1BR
You must have: Total Marks
Calculator, ruler
Instructions
• Use black ink or ball-point pen.
• centrethe
Fill in boxes at the top of this page with your name,
number and candidate number.
• Answer all questions.
• Answer the questions in the spaces provided
– there may be more space than you need.
• Show all the steps in any calculations and state the units.
• Some questions must be answered with a cross in a box . If you change your
mind about an answer, put a line through the box and then mark your new
answer with a cross .
Information
• The total mark for this paper is 110.
• The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
Advice
• Read each question carefully before you start to answer it.
• Try to answer every question.
• Check your answers if you have time at the end.
Turn over
*P67076A0132*
P67076A
©2021 Pearson Education Ltd.
1/1/1/
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Answer ALL questions.
1 (a) The diagram shows a plant cell.
S
P
R
Q
(i) Which part of this cell contains chlorophyll?
(1)
A P
B Q
C R
D S
(ii) Which of these is found in chlorophyll?
(1)
A calcium
B iron
C magnesium
D water
(iii) Describe the role of chlorophyll.
(2)
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2
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(b) Which of these is an example of positive phototropism?
(1)
A a plant root growing away from light
B a plant root growing downwards due to gravity
C a plant stem growing towards light
D a plant stem growing upwards due to gravity
(c) The table lists the roles of some substances found in living organisms.
Complete the table by naming each substance.
The first one has been done for you.
(3)
Role of substance Name of substance
positive phototropism auxin
digests fat
diffuses across a synapse
prevents scurvy
(Total for Question 1 = 8 marks)
3
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2 The diagram shows the position of some hormone producing glands in the female body.
W
X
Z
Y
P
(a) Which of these structures is the adrenal gland?
(1)
A W
B X
C Y
D Z
(b) The adrenal gland is an organ that secretes adrenaline.
State what is meant by the term organ.
(1)
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4
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