BIOCHEM

• enzymes


  Enzymes help speed up chemical reactions in the human body
• they are essential for....

   respiration, digesting food, muscle and nerve function, among thousands of other roles.
• enzymes are built of

  proteins
• enzymes are present


  throughout the body
• enzymes consists of


  chain amino acids
•  their actions vary depending ultimately on their

  amino acid sequence
• Each enzyme has a specific action depending on the

  three dimensional structure
• Enzymes speed up (catalyze)


  chemical reactions a million times faster
• A substrate binds to the____ of an enzyme and converted into___

  active site; products
• enzymes help the body break down ____ into ___

  larger complex molecules; smaller molecules
• enzymes helps in DNA replication by

  unwinding the DNA coils and copying the information.
• the liver breaks down 


  toxins in the body
• trypsin is secreted by


  pancreas
• chymotrypsin is secreted by

  pancreas
• carboxypeptidase is secreted by 


  pancreas
• pancreatic amylase is secreted by

  pancreas
• pancreatic lipase (streapsin) is secreted by


  pancreas
• salivary amylase is secreted by

  salivary glands
• enterokinase is secreted by


  small intestine
• erepsin is secreted by


  small intestine
• maltase is secreted by


  small intestine
• sucrase is secreted by


  small intestine
• lactase is secreted by 


  small intestine
• renin is secreted by

  stomach
• pepsin is secreted by

  stomach
• gastric amylase is secreted by

  stomach
• gastric lipase is secreted by

  stomach
• enzyme substrate complex model is called

  lock and key model
• lock and key model is now called

  induced fit model
• in induced fit model, the active site changes shapes as it interacts with

  substrate
• lipases


  helps digests fats in the guts
• amylase


  change starch into sugars
• maltase


  breaks sugar maltose into glucose
• trypsin

  •  breaks proteins down into amino acids.
• lactase


   breaks lactose, the sugar in milk, into glucose and galactose
• Acetylcholinesterase 


  breaks down the neurotransmitter acetylcholine in nerves and muscles
• helicase


  unravels DNA
• DNA polymerase 


  synthesizes DNA from deoxyribonucleotides.
• enzyme

  A) enzyme

  B) active site

  C) substrate

  D) enzyme substrate complex

  E) enzyme

  F) product

  
• Most enzymes in the human body work best at around what degree Celsius

  37 Celcius