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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
Monday 15 January 2024
Morning (Time: 1 hour 30 minutes) Paper
reference WBI12/01
Biology
International Advanced Subsidiary/Advanced Level
UNIT 2: Cells, Development, Biodiversity
and Conservation
You must have: Total Marks
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 80.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• Into questions labelled with an asterisk (*) marks will be awarded for your ability
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.
• Check your answers if you have time at the end.
Turn over
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
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 .
1 Plants contain tissues involved in the transport of substances.
The diagram shows a sunflower plant.
height of
sunflower plant
height of
person = 1.6 m
(a) Estimate the height of the sunflower, using the information in the diagram.
Give your answer with appropriate units.
(1)
, (b) The photograph shows a structure that would be found in a sunflower plant.
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
(i) Which of the following tissues contain lignin?
1. phloem
2. sclerenchyma
3. xylem
(1)
A 1 only
B 1 and 3 only
C 2 and 3 only
D 3 only
4
*P75590A0436*
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