This 20-question advanced practice set has been carefully developed based on the October 2026 IAL Biology scientific article, “Fish Have a Brain Microbiome. Could Humans Have One Too?” The questions cover a broad range of IAL Biology concepts, including the blood–brain barrier, bacterial cell structure, routes of pathogen entry, brain anatomy and functions, the olfactory pathway, the gut–brain axis, homeostasis, immune responses, microscopy and imaging techniques, experimental design and evaluation of scientific evidence.

A carefully prepared revision resource based on Part 3 of the June 2026 IAL Biology Unit 5 scientific article, Problems with energy supply This resource contains 12 exam-style practice and prediction questions designed to help students understand the article, improve application skills, and prepare confidently for Question 8. Questions are structured in the style of Edexcel examinations and focus on likely examinable areas from the first section of the article.

A carefully prepared revision resource based on Part 1 of the June 2026 IAL Biology Unit 5 scientific article, Beyond tired: Why fatigue sets in and how to tackle it. This resource contains 12 exam-style practice and prediction question answers designed to help students understand the article, improve application skills, and prepare confidently for Question 8. Questions are structured in the style of Edexcel examinations and focus on likely examinable areas from the first section of the article.

A carefully prepared revision resource based on Part 2 of the June 2026 IAL Biology Unit 5 scientific article, Problems with energy supply This resource contains 10 exam-style practice and prediction questions designed to help students understand the article, improve application skills, and prepare confidently for Question 8. Questions are structured in the style of Edexcel examinations and focus on likely examinable areas from the first section of the article.

A carefully prepared revision resource based on Part 1 of the June 2026 IAL Biology Unit 5 scientific article, Beyond tired: Why fatigue sets in and how to tackle it. This resource contains 12 exam-style practice and prediction questions designed to help students understand the article, improve application skills, and prepare confidently for Question 8. Questions are structured in the style of Edexcel examinations and focus on likely examinable areas from the first section of the article.