Written by students who passed Immediately available after payment Read online or as PDF Wrong document? Swap it for free 4.6 TrustPilot
logo-home
Exam (elaborations)

May 2025 Edexcel: AS Level Biology B 8BI0/02 Paper 2 – Core Physiology and Ecology – Merged Question Paper & Mark Scheme

Rating
-
Sold
-
Pages
57
Grade
A+
Uploaded on
25-05-2026
Written in
2025/2026

May 2025 Edexcel: AS Level Biology B 8BI0/02 Paper 2 – Core Physiology and Ecology – Merged Question Paper & Mark Scheme

Institution
May 2025 Edexcel: AS Level Biology B 8BI0/02
Course
May 2025 Edexcel: AS Level Biology B 8BI0/02

Content preview

May 2025 Edexcel: AS Level Biology
B 8BI0/02 Paper 2 – Core
Physiology and Ecology – Merged
Question Paper & Mark Scheme

, Candidate surname Other names


Centre Number Candidate Number




Paper


B 🟐 🟐


Advanced Subsidiary
PAPER 2: Core Physiology and Ecology

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 name,
centre number and candidate number.
•• Answer all questions.
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.
• Instructure
Exam Resource Summary
question(s) marked with an asterisk (*), marks will be awarded for your ability to
The May 2025 Edexcel AS Level Biology B 8BI0/02 – Paper 2: Core Physiology and Ecology –
your answer logically, showing how the points that you make are related or
Merged
followQuestion
from eachPaper & where
other Mark Scheme document integrates the official examination paper
appropriate.
with its complete mark scheme. This paper assesses students’ understanding of key
Advice
physiological systems, ecological principles, and their interactions, including topics such as


human physiology, plant biology, ecosystems, and energy flow. The merged format presents
Read
each each question
question carefully
alongside before
its marking you start
criteria, to answer
providing clearit.guidance on examiner
•expectations, mark allocation,
Try to answer every question. and question structure. This resource supports focused
•revision, application of biological theory to practical
Check your answers if you have time at the end. and ecological scenarios, and the
development of analytical and evaluative skills, making it essential for preparation for the
May 2025 Edexcel AS Level Biology B Paper 2 examination.
Turn over


P78690A
©2025 Pearson Education Ltd.
Y:1/1/1/1/1/

, Answer ALL questions.

Some questions must be answered with a cross in a box . If you change your mind about an




DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .

1 The cell surface membrane controls transport into and out of the cell.

(a) The diagram shows a cell surface membrane with some structures labelled.

carbohydrate chain
P Q




R




DO NOT WRITE IN THIS AREA
S
V U T

(i) Which of the following labelled structures is cholesterol?
(1)
A P

B Q

C S

D V


(ii) Which of the following labelled structures is an integral protein?
(1)
A Q
DO NOT WRITE IN THIS AREA

B R

C S
D U




2

■■■■

, (iii) Which structure allows water molecules into the cell?
(1)
A P
DO NOT WRITE IN THIS AREA




B Q

C T
D V


(b) Explain how the properties of oxygen and of sodium ions determine how they
enter a cell.
(4)
Oxygen

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



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



. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. . ......................
DO NOT WRITE IN THIS AREA




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



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



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



Sodium ions

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



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



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



. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. . . . ......................
DO NOT WRITE IN THIS AREA




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



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



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



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


(Total for Question 1 = 7 marks)




3

■■■■ Turn over

Written for

Institution
May 2025 Edexcel: AS Level Biology B 8BI0/02
Course
May 2025 Edexcel: AS Level Biology B 8BI0/02

Document information

Uploaded on
May 25, 2026
Number of pages
57
Written in
2025/2026
Type
Exam (elaborations)
Contains
Questions & answers

Subjects

$8.99
Get access to the full document:

Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF


Also available in package deal

Thumbnail
Package deal
May 2025 Edexcel AS Level Biology Exam Bundle (Biology A SNAB & Biology B Paper 2 Question Papers & Mark Schemes)
-
3 2026
$ 11.78 More info

Get to know the seller

Seller avatar
Reputation scores are based on the amount of documents a seller has sold for a fee and the reviews they have received for those documents. There are three levels: Bronze, Silver and Gold. The better the reputation, the more your can rely on the quality of the sellers work.
Cate001 Walden university
View profile
Follow You need to be logged in order to follow users or courses
Sold
179
Member since
3 year
Number of followers
78
Documents
1887
Last sold
2 weeks ago

4.9

419 reviews

5
398
4
12
3
5
2
1
1
3

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

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Working on your references?

Frequently asked questions