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Pearson Edexcel International Advanced Level International Advanced Level UNIT 5: Respiration, Internal Environment, Coordination and Gene Technology Question paper June 2024

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Pearson Edexcel International Advanced Level International Advanced Level UNIT 5: Respiration, Internal Environment, Coordination and Gene Technology Question paper June 2024

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  • September 2, 2024
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Please check the examination details below before entering your candidate information
Candidate surname Other names


Centre Number Candidate Number




Pearson Edexcel International Advanced Level
Friday 07 June 2024
Morning (Time: 1 hour 45 minutes) Paper
reference WBI15/01
Biology ■ ■


International Advanced Level
UNIT 5: Respiration, Internal Environment,
Coordination and Gene Technology

You must have: Total Marks
Scientific article (enclosed), scientific calculator, ruler, HB pencil



Instructions

•• Use black ink or ball-point pen.
Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.

Information

•• The total mark for this paper is 90.
The marks for each question are shown in brackets

• Questions
– use this as a guide as to how much time to spend on each question.
labelled with an asterisk (*) marks will be awarded for your ability to
structure your answer logically, showing how the points that you make are related
or follow on from each other where appropriate.

Advice
• Read each question carefully before you start to answer it.
• Try to answer every question.
• your answers if you have time at the end.
Check
Pearson Edexcel International Advanced Level International Advanced Level UNIT 5: Respiration, Internal
Environment, Coordination and Gene Technology Question paper June 2024 Turn over


P75775A
©2024 Pearson Education Ltd.
F:1/1/1/1/1/1/

, Answer ALL questions.

Some questions must be answered with a cross in a box . If you change your mind about an




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answer, put a line through the box and then mark your new answer with a cross .
1 Muscles, tendons and ligaments interact to enable movement.

(a) The diagram shows an undamaged knee joint and part of a knee joint with a
damaged anterior cruciate ligament.

Undamaged knee joint Part of knee joint with damaged
anterior cruciate ligament




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(Source: © rob3000/Alamy Stock Vector)

(i) Which structure would the anterior cruciate ligament be attached to?
(1)
A bone

B cartilage DO NOT WRITE IN THIS AREA

C muscle
D tendon




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, (ii) Damage to anterior cruciate ligaments can be detected using magnetic
resonance imaging (MRI).
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Describe how MRI can show damage to the anterior cruciate ligament.
(2)

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(iii) In one country, there were 77 anterior cruciate ligament repairs for every
100 000 males in one year.

The population of this country in that year was 67 000 000 and 56% of the
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population were female.

Calculate the number of anterior cruciate ligament repairs in males that year.
(2)




Answer ..............................................................
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3
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, (b) The diagram shows some muscles in an arm.




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B


A




(i) Name the two types of skeletal muscle that are contracted when the arm is
held in this position.
(1)




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(ii) Describe how the arm could be straightened by the muscles labelled A and B.
(2)

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(Total for Question 1 = 8 marks)




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