What is diffusion?
Diffusion is the movement of water molecules through a partially permeable membrane.
Diffusion is the net movement of particles from higher to lower concentration.
Diffusion is the movement of particles using energy from respiration.
Diffusion is the net movement of particles from lower to higher concentration.
1.4 Transport across cell membranes Flashcards
Flashcards for Edexcel GCSE Biology 1.4 Transport across cell membranes, covering the key terms, definitions and processes you need to recall for Paper 1 and Paper 2. 26 cards drawn from 1.4.1 Transport into and out of cells and 1.4.2 Percentage gain and loss in osmosis, matched to the Edexcel GCSE Biology (1BI0) specification. Recall questions account for roughly 40% of marks at GCSE Biology, so these target the marks you can secure before the paper starts.