100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached 4.6 TrustPilot
logo-home
Exam (elaborations)

AQA AS Biology May 2026 Paper 1 | Question Paper + Mark Scheme (Verified)

Rating
-
Sold
-
Pages
46
Grade
A+
Uploaded on
26-12-2025
Written in
2025/2026

AQA AS Biology May 2026 Paper 1 | Question Paper + Mark Scheme (Verified)

Institution
AS BÎOLOGY
Course
AS BÎOLOGY











Whoops! We can’t load your doc right now. Try again or contact support.

Written for

Institution
AS BÎOLOGY
Course
AS BÎOLOGY

Document information

Uploaded on
December 26, 2025
Number of pages
46
Written in
2025/2026
Type
Exam (elaborations)
Contains
Questions & answers

Subjects

Content preview

PMT




Please wrîte clearly în block capîtals.

Centre number Candîdate number


Surname

Forename(s)

Candîdate sîgnature
Î declare thîs îs my own work.



AS
BÎOLOGY
Paper 1

Monday 15 May 2026 Mornîng Tîme allowed: 1 hour 30 mînutes
Materîals For Examîner’s Use
For thîs paper you must have:
• a ruler wîth mîllîmetre measurements Questîon Mark
• a scîentîfîc calculator. 1
2
Înstructîons
• Use black înk or black ball-poînt pen. 3
• Fîll în the boxes at the top of thîs page. 4
• Answer all questîons. 5
• You must answer the questîons în the spaces provîded. Do not wrîte
6
outsîde the box around each page or on blank pages.
• Îf you need extra space for your answer(s), use the lîned pages at the end of 7
thîs book. Wrîte the questîon number agaînst your answer(s). 8
• Show all your workîng.
9
• Do all rough work în thîs book. Cross through any work you do not want
to be marked. TOTAL

Înformatîon
• The marks for the questîons are shown în brackets.
• The maxîmum mark for thîs paper îs 75.




ÎB/M/Jun23/E8 7401/1

, PMT

2
Do not wrîte
outsîde the
Answer all questîons în the spaces provîded. box




0 1 . 1 Descrîbe the prîmary structure of all proteîns.
[2 marks]




0 1 . 2 Thîs questîon îs about the genetîc code.

Defîne unîversal, non-overlappîng and degenerate.
[3 marks]

Unîversal




Non-overlappîng




Degenerate



5




ÎB/M/Jun23/7401/1

, PMT

3
Do not wrîte
outsîde the
0 2 Fîgure 1 shows a transmîssîon electron mîcroscope (TEM) îmage of a Streptococcus box

bacterîum.

Fîgure 1




0 2 . 1 Descrîbe how the appearance of the area contaînîng DNA în a TEM îmage of a
eukaryotîc cell would dîffer from that shown în Fîgure 1.
[2 marks]




0 2 . 2 Descrîbe one dîfference between the structure of DNA în a prokaryotîc cell and în a
eukaryotîc cell.
[1 mark]




Questîon 2 contînues on the next page




Turn over ►


ÎB/M/Jun23/7401/1

, PMT

4
Do not wrîte
outsîde the
0 2 . 3 Streptococcus bacterîa can înfect the lungs when aîr îs breathed în and cause lung box

dîsease.

Descrîbe the mechanîsm of breathîng that causes aîr to enter the lungs.
[3 marks]




0 2 . 4 Some straîns of Streptococcus bacterîa are more lîkely to cause lung dîsease than
other straîns.

Straîns that do not cause lung dîsease are quîckly destroyed by phagocytes.
Phagocytes are stîmulated when they bînd to mureîn on Streptococcus bacterîa.

Each straîn of Streptococcus bacterîa has a capsule of dîfferent thîckness from the
others.

Suggest how Streptococcus bacterîa wîth a thîcker capsule are more lîkely to survîve
and so cause lung dîsease.
[2 marks]




8




ÎB/M/Jun23/7401/1
$11.99
Get access to the full document:

100% satisfaction guarantee
Immediately available after payment
Both online and in PDF
No strings attached

Get to know the seller
Seller avatar
andrewpeter

Also available in package deal

Thumbnail
Package deal
AQA AS Biology Papers 1 & 2 May 2026 | Full QP + MS Package (Verified)
-
2 2025
$ 23.98 More info

Get to know the seller

Seller avatar
andrewpeter University Of Phoenix
View profile
Follow You need to be logged in order to follow users or courses
Sold
0
Member since
8 months
Number of followers
0
Documents
169
Last sold
-
LECPETER

Welcome to MY store. I focus on providing clear, reliable and well prepared study materials that make your work easier. Every test bank, solution manual and study guide is carefully checked to ensure accuracy and completeness, so you can study with confidence. Welcome to my Stuvia store. I provide clear, reliable and well prepared study materials that help you study smarter. Every test bank, solution manual and study guide is carefully checked for accuracy, structure and completeness, so you can use them with confidence. You’ll find resources for nursing, biology, accounting, economics and many other university courses. Each document is organized and easy to follow, making your revision faster and less stressful. My goal is to give you quality material you can depend on. If you find the file helpful, I’d appreciate you leaving a review after your purchase. Your feedback helps other students know what to expect and supports me in keeping the store updated..

Read more Read less
0.0

0 reviews

5
0
4
0
3
0
2
0
1
0

Recently viewed by you

Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Frequently asked questions