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Edexcel AS Biology B Question Paper 2 2025 Predicted
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Edexcel AS Biology B Question Paper 2 2025 Predicted
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Please check the examination details below before entering your candidate informationCandidate surname Other names
Centre Number Candidate Number
Pearson Edexcel GCE
Time: 1 hour 30 minutes Paper
reference 8BI0/02
Biology B
Advanced Subsidiary 2025 Predicted Paper
PAPER 2: Core Physiology and Ecology
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 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.
• structure
In question(s) 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 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.
, 2
1. (a) Which organelle is primarily responsible for producing ATP in cells? (1)
A) Nucleus
B) Ribosome
C) Mitochondrion
D) Golgi apparatus
(b) What is the main advantage of a double circulatory system in mammals? (1)
A) It requires less energy to circulate blood.
B) It separates oxygenated and deoxygenated blood.
C) It allows diffusion of oxygen through the skin.
D) It minimizes blood pressure in arteries.
(c) Which statement best describes the role of root hair cells in plants?
(1)
A) Photosynthesis
B) Translocation
C) Water and mineral absorption
D) Structural support
d. Vaccination programs have significantly reduced the incidence of many diseases.
(i) What is a vaccine, and how does it help to protect against disease? (2)
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
………………………………………………………….………………………………………………...
Edexcel AS Biology Question Paper 2B 2025 Predicted
, 3
(ii) Describe how herd immunity works. (2)
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
………………………………………………………….………………………………………………...
(iii) Name one disease that has been eradicated by vaccination and explain why vaccination was
successful in this case. (2)
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
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(Total for Question 1 = 9 marks)
Edexcel AS Biology Question Paper 2B 2025 Predicted
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