Two Types of Cell
Two Types of Cell

Every organism is built from cells, and each sub-cellular structure, or organelle, performs a particular function. The structures present provide evidence about the type of cell and the work it carries out.
Step-by-step lessons on Edexcel GCSE Biology 1.1.1 Sub-cellular structures and functions. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.