Food Preparation And Nutrition -
Changing Properties, Proteins - AQA -
GCSE Questions And Answers
What bdoes bthe bterm b'functional bproperties' bmean? b- bcorrect banswers✔✔How
bsomething bchanges bfood
What bdoes bthe bterm b'chemical bproperties' bmean? b- bcorrect banswers✔✔The
bscience bbehind bhow bsomething bchanges bfood
Proteins bhave ba b_____________ bstructure b- bcorrect banswers✔✔complex
Explain bthe bprocess bof bdenaturation b- bcorrect banswers✔✔When bfood bis bcooked,
bproteins bdenature
This bmeans bthat bthe bchemical bbonds bholding btheir bstructure btogether bbreak bdown
The bproteins bunravel band btheir bshape bchanges
In bmost bcases bthis bis birreversible
Give bthe bdifferent bways bin bwhich bproteins bcan bbe bdenatured? b- bcorrect
banswers✔✔- bPhysical bagitation b(e.g. bwhisking, bbeating band bkneading)
- bChanges bin btemperature b(e.g. bheat)
- bAcids b(e.g. blemon bjuice band bmarinades
What bdo bacidic bmarinades bdo bto bproteins? b- bcorrect banswers✔✔Acidic bmarinades
bdenature bthe bprotein bin bmeat bbefore bcooking
This bmakes bthe bmeat bmore btender bbefore byou bstart bcooking bit
Explain bthe bprocess bof bcoagulation b- bcorrect banswers✔✔Once bthey bhave bbeen
bdenatured, bprotein bmolecules bcollide bwith bother bprotein bmolecules band bcoagulate
b(join btogether)
Changing Properties, Proteins - AQA -
GCSE Questions And Answers
What bdoes bthe bterm b'functional bproperties' bmean? b- bcorrect banswers✔✔How
bsomething bchanges bfood
What bdoes bthe bterm b'chemical bproperties' bmean? b- bcorrect banswers✔✔The
bscience bbehind bhow bsomething bchanges bfood
Proteins bhave ba b_____________ bstructure b- bcorrect banswers✔✔complex
Explain bthe bprocess bof bdenaturation b- bcorrect banswers✔✔When bfood bis bcooked,
bproteins bdenature
This bmeans bthat bthe bchemical bbonds bholding btheir bstructure btogether bbreak bdown
The bproteins bunravel band btheir bshape bchanges
In bmost bcases bthis bis birreversible
Give bthe bdifferent bways bin bwhich bproteins bcan bbe bdenatured? b- bcorrect
banswers✔✔- bPhysical bagitation b(e.g. bwhisking, bbeating band bkneading)
- bChanges bin btemperature b(e.g. bheat)
- bAcids b(e.g. blemon bjuice band bmarinades
What bdo bacidic bmarinades bdo bto bproteins? b- bcorrect banswers✔✔Acidic bmarinades
bdenature bthe bprotein bin bmeat bbefore bcooking
This bmakes bthe bmeat bmore btender bbefore byou bstart bcooking bit
Explain bthe bprocess bof bcoagulation b- bcorrect banswers✔✔Once bthey bhave bbeen
bdenatured, bprotein bmolecules bcollide bwith bother bprotein bmolecules band bcoagulate
b(join btogether)
