100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Pearson Edexcel Biology A Advanced Subsidiary PAPER 1 Lifestyle, Transport, Genes and Health June 2023 CA$20.99   Add to cart
Quickly navigate to
Preview
  2.  
  3. PEARSON (PEARSON)
  4.  
  5. Biology A
  6.  
  7. Biology A

Exam (elaborations)

Pearson Edexcel Biology A Advanced Subsidiary PAPER 1 Lifestyle, Transport, Genes and Health June 2023
 83 views  3 purchases
  • Course
  • Biology A
  • Institution
  • PEARSON (PEARSON)

Pearson Edexcel Biology A Advanced Subsidiary PAPER 1 Lifestyle, Transport, Genes and Health June 2023

Preview 4 out of 38  pages

Document information

  • October 11, 2023
  • 38
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

Subjects

  • pearson edexcel level 3
  • biology a salters nuffield advanced subsidiary
  • paper 1 lifestyle transport genes and health

Written for

  • A/AS Level
  • PEARSON (PEARSON)
  • Biology A
  • Biology A
All documents for this subject (31)

Seller

avatar-seller
teachertestbank

Reviews received

Content preview

Candidate surname Other names


Centre Number Candidate Number



Pearson Edexcel Level 3
GCE
Monday 15 May 2023
Pape
8BN0/01
Morning (Time: 1 hour 30 r
reference
minutes)
 
Biology A (Salters Nuffield)
Advanced Subsidiary
PAPER 1: Lifestyle, Transport, Genes and Health

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



Instructions

•• Use black ink or ball‑point pen.
Fill in the boxes at the top of this page with your
centre number and candidate number.
•• Answer
name,
all
Show all your working out in calculations and include units where
• appropriate. – there may
Answer the questions
questions.
be spaces
in the more space than you need.
Information
• provided
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.
• In questions marked with an asterisk (*), marks will be awarded for your
ability to 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
Check your answers if you have time at the end.
Turn over
question.




1

, 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 answer, put a line through the box and
then mark your new answer with a cross .

1 The diagram shows a DNA nucleotide.



O



(a) (i) Complete the diagram to show how a complementary pair of
nucleotides would appear in a DNA molecule.
(2)

(ii) Name two bonds formed between nucleotides in the
process of DNA replication.
(2)

1 . .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. ..
. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. ..................



2 . .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. ..
. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. ..................




2


, (b) The diagram shows the structure of a DNA nucleotide and a modified
nucleotide called CeNA.




O


DNA nucleotide CeNA nucleotide



Give one difference in the structure of these two
molecules. (1)

. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. ..
. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .......................



. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. ..
. .. .. .. .. .. .. .. .. .. ... . . .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .......................



. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. ..
. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .......................



(Total for Question 1 = 5 marks)




3
 Turn
over

, 2 The human circulatory system is composed of the heart and blood vessels.
(a) The graph shows pressure changes in the aorta, left atrium and left
ventricle during the cardiac cycle.

20 Left
ventricle
15 Left atrium
R Aorta
Blood 10 Q
pressure S
/ kPa 5 P

0

–5
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Time / s

(i) At which part of the graph is the left atrioventricular valve starting to
close? (1)

A P
B Q
C R
D S


(ii) At which part of the graph is a semilunar valve opening? (1)

A P
B Q
C R
D S




4


The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

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 teachertestbank. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$20.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

67866 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
CA$20.99  3x  sold
  • (0)
  Add to cart