Exam (elaborations)
AQA A LEVEL BIOLOGY 7402/1 paper 1 Question Paper JUN22
- Course
- Institution
AQA A LEVEL BIOLOGY 7402/1 paper 1 Question Paper JUN22
[Show more]
Seller
Follow
oliver001
Reviews received
Content preview
Please write clearly in block capitals.A-level
Centre Candidate
BIOLOGY
number number
Paper 1
Surname
Forename(s)
Candidate re Time allowed: 2 hours
signatu
Materials
For this paper you must have: For Examiner’s Use
a ruler with millimetre measurements
Questio Mark
a scientific calculator. n
1
Instructions
2
Use black ink or black ball-point pen.
Fill in the boxes at the top of this page. 3
Answer all questions. 4
You must answer the questions in the spaces provided. Do 5
not write outside the box around each page or on blank
6
pages.
If you need extra space for your answer(s), use the lined pages at 7
the end of this book. Write the question number against your 8
answer(s). 9
Show all your working.
Do all rough work in this book. Cross through any work you do TOTAL
not want to be marked.
Information
The marks for the questions are shown in brackets.
The maximum mark for this paper is 91.
*jun227402101*
IB/M/Jun22/ 7402/1
E12
, 2
Do not
write
There are no questions printed on this page box
DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED
*02
IB/M/
*
, 3
Do not
Answer all questions in the spaces write
box
provided.
0 1 .1 Describe the structure and function of the nucleus.
[4 marks]
Question 1 continues on the next page
Turn over ►
*03
IB/M/
*
, 4
Do not
write
box
0 1 .2 Name the main polymer that forms the following cell walls.
[1 mark]
Plant cell wall
Fungal cell wall
Scientists investigated the effect of the number of fungal species in
soil on the diversity of plant species.
Table 1 shows their raw data for soil containing 14 fungal species.
Table 1
Plant species Total shoot biomass / g m–2
Poa compressa 2
Achillea millefolium 4
Aster cordifolius 5
Aster novae-angliae 7
Chrysanthemum leucanthemum 15
Daucus carota 36
Fragaria virginiana 51
0 1 .3 Suggest one reason the scientists used biomass instead of the number of
individuals of each plant species when collecting data to measure
diversity.
[1 mark]
*04
IB/M/
*
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 or Stuvia-credit 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 oliver001. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
52355 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now