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Transcript of Active Transport
ATP is a chemical compound that cells would use to store energy or to release energy. Stands for " Adenosine Diphosphate ". Adenosine Disophate is a low energy type of "ATP". Active transport explains what happens when a cell uses energy to transport something such as molecules across the cell membrane WHAT IS
ACTIVE TRANSPORT? Primary: Primary active transport directly uses energy
to transport molecules across a membrane. Secondary: Secondary active transport on the other hand, involves the use of electrochemical gradient Carrier Proteins What is ATP? Passive transport is similar to active transport, but does not require energy/ATP. What is ADP? Bibliography http://www.biology4kids.com/files/cell2_activetran.html http://www.biology4kids.com/files/cell2_passivetran.html http://dictionary.kids.net.au/word/passive_transport http://hyperphysics.phy-astr.gsu.edu/%E2%80%8Chbase/biology/actran.html There are many situations in living organisms when molecules move across cell membranes from a part of lower concentration in the direction of a part of higher concentration. What is Low & High Concentration? Concentration is the number of molecules of a substance in a given volume (cell membrane) High Concentration Low Concentration http://www.biology-online.org/ http://www.typically.net/Neuroscience/glossary.htm http://encyclopedia.kids.net.au/page/ac/Active_transport http://www.brainpop.com/science/livingsystems/activetransport/preview.weml http://biology-pictures.blogspot.ca/2011/08/active-transport-diagram.html http://science.yourdictionary.com/active-transport http://education-portal.com/academy/lesson/active-transport-in-cells-definition-examples.html Quiz Time! 1. What is the main difference between active transport and passive transport? Active transport requires energy while passive transport doesn't 2. What is the function of the proteins in the cell membrane? Helps with cell transport 3. Active transport is where _____________ move against an electrical or concentration gradient Molecules 4. Where does active transport usually occur? Cell membrane http://www.everythingbio.com/glos/definition.php?word=Electrochemical+gradient Electrochemical gradient is a variation of electrical and chemical concentration across a membrane Active Transport in Action! Active Transport Analogy Say you're in a prison - (cell membrane) To enter or leave a prison, you have to go through a gate - (transporting) To get you in, the security has to push you in the prison against your will - (carrier proteins) (energy) What Did We Learn? - The importance of active transport and its function - The differences between passive and active transport - The requirments of what active transport needs in order to do its job Thank You For Listening! Any Questions? Books: - Universes Large and Small: Cells - Cells and Systems by: Holly Wallace - Biology: Life as We Know It! by: Dan Green - The KidHaven Science Library: Cells by: Jeanne DuPrau - The Kingfisher: Science Encyclopedia