Amino acids, Proteins & DNA (A Level only) (AQA A-Level Chemistry): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
What are enzymes?
What are enzymes?
Proteins that catalyse biochemical reactions
What structure do most enzymes have?
What structure do most enzymes have?
Globular
What is an active site?
What is an active site?
Small crevice/pocket where substrate binds
What is enzyme stereospecificity?
What is enzyme stereospecificity?
Catalyses only one enantiomer of chiral substrate
What is an enzyme-substrate complex?
What is an enzyme-substrate complex?
Forms when substrate binds to enzyme's active site
How do enzymes speed up reactions?
How do enzymes speed up reactions?
Lower activation energy via alternative pathway
What is activation energy?
What is activation energy?
Minimum energy needed for successful reaction
What are enzyme inhibitors?
What are enzyme inhibitors?
Molecules blocking active site, preventing substrate binding
How do enzyme-inhibiting drugs work?
How do enzyme-inhibiting drugs work?
Mimic substrate, bind to active site, block real substrate
What tool is used to design enzyme inhibitors?
What tool is used to design enzyme inhibitors?
Computer modelling of 3D enzyme structure