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EDEXCEL A LEVEL BIOLOGY QUESTION PAPER 2 JUNE 2023 SALTERS NUFFIELD . CA$11.31   Add to cart
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EDEXCEL A LEVEL BIOLOGY QUESTION PAPER 2 JUNE 2023 SALTERS NUFFIELD .
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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 Level 3 GCE Friday 16 June 2023 Morning (Time: 2 hours) 9BN0/02 Paper reference Total Marks Biology A (Salters Nuffield) Advanc...

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  • December 4, 2023
  • 33
  • 2023/2024
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  • edexcel a level biology question paper 2 june 2023

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EDEXCEL A LEVEL BIOLOG
QUESTION PAPER 2 JUNE 20
SALTERS NUFFIELD .

, Please check the examination details below before entering your candidate informati
Candidate surname Other names


Centre Number Candidate Number




Pearson Edexcel Level 3 GCE
Friday 16 June 2023
9BN0/02
Morning (Time: 2 hours) Paper
reference

Biology A (Salters Nuffield)
 


Advanced
PAPER 2:
Energy, Exercise and Coordination


You must have: Total Marks
Scientific calculator, pencil, ruler



Instructions
• Use
• centre number
black ink or ball-point pen.
Fill in the boxes at the top of this page with your name,

•
and candidate number.

• Show
Answer all questions.
your working in any calculation questions and include units in your answer

• Answer
where appropriate.
the questions in the spaces provided
– there may be more space than you need.

Information
• The
• – usemarks
total mark for this paper is 100.
The for each question are shown in brackets

• In questions
this as a guide as to how much time to spend on each question.
You may use a scientific calculator.
• structure yourmarked with an asterisk (*), marks will be awarded for your ability to
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.

• Check your answers if you have time at the end.
Try to answer every question.
Turn over



P71907A
©2023 Pearson Education Ltd. *P71907A0132*
N:1/1/1/1/

, Answer ALL questions.

Write your answers in the spaces provided.

Some questions must be answered with a cross . Ifinyou
a box
change your mind about
answer, put a line through the and
box then mark your new answer with .a cross
1 During growth, cells divide by mitosis. Many organisms also carry out meiosis to
enable sexual reproduction.

(a) (i) In which stage of cell division do spindle fibres attach to the centromeres?
(1)
A anaphase
B interphase

C metaphase

D telophase


(ii) In which stage of the cell division does the nuclear membrane start to
break down?
(1)
A interphase

B metaphase
C prophase

D telophase


(iii) In which stage of cell division are chromatids first visible when using a
light microscope?
(1)
A interphase

B metaphase

C prophase
D telophase




2

, DO NOT WRITE IN THIS AREA



(b) Meiosis is involved in the production of sperm cells.

Crossing over during meiosis can result in genetic variation.
DO NOT WRITE IN THIS AREA




Explain how crossing over can lead to genetic variation.
(3)

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(Total for Question 1 = 6 marks)
DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA





3

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