Denaturacija, keratin i kolagen_IS
Quiz
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Chemistry
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University
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Medium
Igor Stuparevic
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kolagen je:
Tip ugljikohidrata koji se koristi za dobivanje energije u tijelu
Vlaknasti protein koji izgrađuje hrskavice, tetive, zube u animalnim stanicama
Lipidna molekula bitna za integritet stanične membrane
Enzim uključen u probavu proteina
Vlaknasti protein koji izgrađuje rogove i kopita u životinjskih stanica
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Keratin se primarno nalazi:
U staničnim stijenkama biljaka
U mišićima i kostima životinja
U kosi i vuni u animalnim stanicama
U jetri kao protein za skladištenje
U krvi kao transportni protein
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Denaturacija proteina je:
Proces pretvaranja proteina u njegovu primarnu strukturu
Uklanjanje biološke funkcije proteina putem probave
Promjena strukture proteina, što dovodi do gubitka njegove biološke funkcije
Sinteza proteina iz aminokiselina tijekom translacije
Uklanjanje biološke funkcije proteina kidanjem peptidnih veza
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Što se događa s proteinima u jajetu kada se skuha?
Proteini se razgrađuju na aminokiseline jer pucaju peptidne veze
Proteini se denaturiraju što rezultira formiranjem novi veza i uzrokuje da se jaje stvrdne
Proteini upijaju vodu i šire se zbog hidrofobnih interakcija te čine jaje većim
Proteini ostaju nepromijenjeni, ali jaje postaje vruće
Proteini ostaju nepromijenjeni, ali ugljikohidrati se denaturiraju što uzrokuje da se jaje stvrdne
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kako primjena topline tijekom kuhanja utječe na proteine u mesu?
Uzrokuje da se proteini čvršće savijaju u tercijarnu strukturu, čineći meso sočnijim
Razgrađuje proteine na njihove sastavne šećere
Uzrokuje narušavanje primarne strukture proteina
Nema učinka na proteine, ali odstranjuje svu masnoću
Uzrokuje denaturaciju proteine, što dovodi do promjena u teksturi i boji
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aminokiselina na slici je:
glicin
valin
prolin
tirozin
hidroksiprolin
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na što se odnosi primarna struktura proteina?
Ukupni 3D oblik proteina.
Sekvencu ugljikohidrata u polipeptidnom lancu.
Savijanje proteina u alfa-helikse i beta-listove.
Kombinacija dviju ili više polipeptidnih lanaca.
Sekvencu aminokiselina u polipeptidnom lancu.
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