A complete overview of Transport Across Membranes, with key definitions and key topic summaries. Created by A Level Biology Tutor- A Notes. Perfect for reviewing a whole range of topics, in one glance: Simple Diffusion, Facilitated Diffusion, Osmosis, Co-Transport, Active Transport The structure of the Plasma Cell Surface Membrane The Phospholipid Bilayer & its Hydrophillic/ Hyrophobic properties Created by A Level Tutor- Biology BSc (Hons). A Summary with Key Definitions for A Level Mark Schemes (A/A)*

A clear, visually explained introduction to Homeostasis. Breakdowns on Negative Feedback Loops, and the Endocrine System and the Nervous System, with key differences between them explained. Opportunities for class/tutor discussion, with matching activities and discussion points. A clear introduction to the topic of homeostasis, created to align with the specifications of GCSE Biology.