AQA B3 - Diffusion,Osmosis and Active Transport A quiz based around the fundamental aspects of B3 Unit 1 3.5 / 5 based on 3 ratings ? BiologyRespiration and exerciseGCSEAQA Created by: H@S@NCreated on: 11-05-13 18:45 What is diffusion? Movement of a substance from a High to Low concentration , through a semi permeable membrane 1 of 7 What is Active Transport? The movement of a substance from a Low to High concentration through special channels in the Membrane 2 of 7 What is Transpiration? The loss of Water Vapour through the underside of a leaf 3 of 7 What speeds up Transpiration? Hot, dry and windy conditions 4 of 7 Why are there more Mitochondria in cells that use Active Transport a lot? To provide the excess energy required for Active Transport 5 of 7 What is a Concentration Gradient? A High to Low movement 6 of 7 What is the difference between Osmosis and Diffusion? Osmosis is the movement of water, and Diffusion can be other substances 7 of 7
Comments
No comments have yet been made