This introduction covers The Cell's Transport System within Cell Transport for GCSE Biology. Diffusion, osmosis, active transport, factors affecting transport, surface area to volume ratio, and practical investigations It is section 1 of 18 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 1 of 18
Practice
18 questions
Recall
20 flashcards
🚗 The Cell's Transport System
Imagine a bustling city where millions of residents need food, water, and supplies delivered to their homes, while waste needs to be removed. Cells face the same challenge! Every cell needs nutrients like glucose and oxygen to survive, while waste products like carbon dioxide must be expelled.
Cells have evolved three main transport systems to move substances in and out: diffusion (like people naturally spreading out in a crowded room), osmosis (the special movement of water), and active transport (using energy to move things uphill). Understanding these processes is crucial for GCSE Biology - they appear in virtually every biological system you'll study!