A-level BIOLOGY Paper 1 7402/1

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A-level
BIOLOGY
Paper 1


Time allowed: 2 hours
Materials
For Examiner’s Use
For this paper you must have:
 a ruler with millimetre measurements Questio Mark
 a scientific calculator. n
1
Instructions 2
 Use black ink or black ball-point pen. 3
 Fill in the boxes at the top of this page.
4
 Answer all questions.
 You must answer the questions in the spaces provided. Do 5
not write outside the box around each page or on blank 6
pages.
7
 If you need extra space for your answer(s), use the lined pages at
the end of this book. Write the question number against your 8
answer(s). 9
 Show all your working.
TOTAL
 Do all rough work in this book. Cross through any work you do
not want to be marked.

Information
 The marks for the questions are shown in brackets.
 The maximum mark for this paper is 91.




IB/M/Jun22/ 7402/1
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,IB/M/Jun22/ 7402/1
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, 2
Do not write
outside the
There are no questions printed on this page box




DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED




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, 3
Do not write
outside the
Answer all questions in the spaces box
provided.


0 1 .1 Describe the structure and function of the nucleus.
[4 marks]




Question 1 continues on the next page




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