Exam (elaborations)
EDEXCEL A LEVEL BIOLOGY 2022 QUESTION PAPER 3
- Module
- 2022 papers and markschemes
- Institution
- PEARSON (PEARSON)
EDEXCEL A LEVEL BIOLOGY 2022 QUESTION PAPER 3
[Show more]
Content preview
Edexcel A Level 2022 papers andmarkschemes
from tyrionpapers.com
Turn over
, Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Time 2 hours
Paper
reference 9BN0/03
Biology A (Salters Nuffield)
Advanced
PAPER 3: General and Practical Applications in Biology
You must have: Total Marks
Ruler, HB pencil and scientific calculator and a copy of the
scientific article adapted from Scientific American (enclosed)
Instructions
• Use black ink or ball-point pen.
• centrethe
Fill in boxes at the top of this page with your name,
number and candidate number.
• Answer all questions.
• Show all your working out in calculations and include units where appropriate.
• – there may
Answer the questions in the spaces provided
be more space than you need.
Information
• The total mark for this paper is 100.
• 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.
• structure
In 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
*P67092RA0128*
P67092RA
©2022 Pearson Education Ltd.
Q:1/1/1/1/1/1/
, Answer ALL questions.
Write your answers in the spaces provided.
1 When oat seeds germinate, they produce roots and a coleoptile.
(a) The effect of shading the tip of the coleoptile was investigated.
The diagram shows how the coleoptile of an oat seedling can bend towards light.
angle of
coleoptile curvature
1 cm
seed
direction
of light
roots
in the dark illuminated for 2 hours
Oat seeds were germinated. When the coleoptiles were 2 cm long the seedlings
were split into three groups.
• Group 1 none of the tip of the coleoptile was shaded
• Group 2 5 mm at the tip of the coleoptile was shaded
• Group 3 10 mm at the tip of the coleoptile was shaded
All the coleoptiles were then exposed to light from one side.
The curvature of the coleoptiles was measured after intervals of 2 hours and
3 hours.
The results of this investigation are shown in the graph.
35
30
25
Mean angle
20 Key
of curvature
of coleoptiles 2 hours
15
/ degrees
10 3 hours
5
0
0 5 10
Length of coleoptile tip shaded / mm
2
*P67092RA0228*
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Revisionbae. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £3.48. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
53068 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now