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Enzymes and DNA Replication

Megan Murphy

on 19 September 2012

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Transcript of Enzymes

By: Megan Murphy Treasure Enzymes Speed up Reactions Enzymes are Catalyst ZOOM! Substrate Sparks of Life Examples Of Enzymes Helicase Pancreatin Amylase Sugar into Starch In Saliva Chemical Digestion Motor Proteins Separates Nucleotides Uses Hydrolysis Breaks down Fat Animal-derived Breaks down Protein Break Chemical Bonds
Begin Reactions Metabolism Enzyme Process Bind
together Two products are formed Enzyme Splits Substrate "Spark" Enzyme releases Products Enzyme (cc) image by nuonsolarteam on Flickr Substrate
Positive Feedback Loop Feedback Loops Feedback Loops Negative Feedback Loop Helicase Unwinds DNA double-helix DNA Polymerase Duplicate DNA strands Summary Enzymes = Protein Catalyst
Substrates are key
Helicase breaks down
Polymerase builds
Both essential for Replication RNA Primer
(Primase) A A A T T T T G G G G C C C C C 2 New Strands
Full transcript