ENZYMES Flashcards
WHAT ARE ENZYMES
CATALYSTRS PRODUCED BY LIVING THINGS
WHAT IS A CATALYST
A SUBSRTANCE WHICH INCREASES THE SPEED OF A REACTION, WITHOUT BEING CHANGED OR USED IN THE REACTION
WHY DO WE HAVE ENZYMES
TO SPEED UP THE USEFUL CHEMICAL REACTIONS
WHAT ARE METABOLIC REACTIONS
WHEN ENZYMES REDUCE THE NEED FOR HIGH TEMPERATURES
ENZYMLES ARE ALL PROTEINS AND ALL PROTEINS ARE MADE UP OF (…) OF (…)
CHAINS OF AMINO ACIDS
WHAT ARE CHAINS OF AMINO ACID FOLDED INTO
UNIQUE SHAPES
WHAT DO CHEMICAL REACTIONS USUALLY INVOLVE
THINGS BEING SPLIT APART OR JOINED TOGETHER
A (…) IS A MOLECULE THAT IS CHANGED IN A REACTION
SUBSTRATE
WHY DO ENZYMES ONLY SPEED UP ONBE REACTION
FO AN ENZYME TO WORK, THE SUBSTRATE HAS TO BE THE CORRECT SHAPE TO FIT INTO THE ACTIVE SITE
WHAT ‘LOCK AND KEY’ MODEL
WHEN A SUBSTRATE FITS IN THE ENZYME (LIKE A KEY FITS INTO A LOCK)
CHANGING THE (…) CHANGES THE RATE OF AN ENZYME-CATALYSED REACTION
TEMPERATURE
BUT HAPPENS IF THE ENZYUME GETS TO HOT
SOME OF THE BONDS HOLDING THE ENZYME TOGETHER BREAK
IT CHANGES THE SHAPE OF THE ENZYMES ACTIVE SITE, SO THE SUBSTRATE WONT FIT ANYMORE
THE ENZYME IS DENATURED WHEN…
ITS SHAPE CHANGES AND THE SUBSTRATE WONT FIT ANYMORE
ALL ENZYMES HAVE (…) THAT THEY WORK BEST AT
OPTIMUM TEMPERATURE
HOW DOES THE PH ALSO AFFECT ENZYMES
IF ITS TOO HIGH OR TOO LOW, THE PH INTERFERES WITHG THE BONDS HOLDING THE ENZYME TOGETHER.
THIS CHANGES THE SHAPE OF THE ACTIUVE SITE AND DENATURES THE ENZYME
