Exam (elaborations)
EDEXCEL AS LEVEL BIOLOGY QUESTION PAPER 2 2024
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Exam of 28 pages for the course Unit 2 - Development, Plants and the Environment at PEARSON (Paper only)
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Please check the examination details below before entering your candidate informationCandidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Thursday 23 May 2024
Morning (Time: 1 hour 30 minutes) Paper
reference 8BN0/02
Biology A (Salters Nuffield)
Advanced Subsidiary
PAPER 2: Development, Plants and the Environment
You must have: Total Marks
Calculator, HB pencil, ruler
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.
Show your working in any calculation questions and include units in your answer
where appropriate.
• 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.
• You may use a scientific calculator.
• Instructure
questions marked with an asterisk (*), marks will be awarded for your ability to
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
P74473A
©2024 Pearson Education Ltd.
F:1/1/1/1/
*P74473A0128*
, Answer ALL questions. Write your answers in the spaces provided.
Some questions must be answered with a cross in a box . If you change your mind about an
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 Plant tissues can be observed using a light microscope.
(a) The photograph shows a cross section through part of a plant stem.
P
Q
R
S
(Source: Sinhyu / Getty Images)
(i) Which of the following letters labels a xylem vessel?
(1)
A P
B Q
C R
D S
(ii) Which of the following is the main function of xylem vessels?
(1)
A transport of mineral ions and organic solutes
B transport of water and mineral ions
C transport of water and organic solutes
D transport of water, mineral ions and organic solutes
2
*P74473A0228*
, (iii) Which of the following tissues contains sieve tubes?
(1)
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
A epidermal
B phloem
C sclerenchyma
D xylem
(b) Calcium ions are transported through plant tissues.
Explain the importance of calcium ions to plants.
(3)
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(Total for Question 1 = 6 marks)
3
*P74473A0328* Turn over
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