
Viirused ja bakterid biotehnoloogias
Quiz
•
Biology
•
11th Grade
•
Medium
Kadri K
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milline väide on õige?
Ühtegi viirust pole võimalik kasutada tööriistana, sest kõik viirused on kahjulikud.
Bakterid on lihtsama ehitusega kui viirused ja seetõttu kasutatakse neid geenitehnoloogias rohkem.
Geeniteraapias asendatakse vigane geen uue töötava geeniga ning selleks kasutatakse nt viiruseid.
Viiruseid kasutatakse valkude tootmiseks seetõttu, et nad paljunevad mõõduka kiirusega.
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Bakteri genoomis eraldi seisev DNA-rõngasmolekul ehk ...
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kust on saadud nõudepesuvahendites sisalduvad ensüümid?
toatemperatuuril elavatest bakteritest
kuumaveeallikates elavatest bakteritest
liustikes elavatest bakteritest
ookeanipõhjast elavatest bakteritest
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millised on biotehnoloogia kasutamise eelised tööstusliku tootmise ees?
Energiat kulub vähem.
Saab toota kõiki vajaminevaid aineid.
Tekivad keskkonnale ohtlikumad jäätmed.
Vajaminevate organismide loomine on kiire.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Miks on bakterid biotehnoloogias kasutamiseks head organismid?
Nad on kindla kujuga.
Nad paljunevad aeglaselt.
Nad moodustavad spoore.
Nad on üherakulised ja muutused avalduvad kohe.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Piimhappebakterite lisamine toidule muudab selle tervislikumaks. Kuidas?
Nad toodavad kasulikku laktoosi.
Soodustavad seedeelundkonna tööd
Toodavad inimesele kasulikku D-vitamiini.
Suurendavad immuunsust kasulike mikroorganismide suhtes.
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Mis mõiste? Energia tootmiseks kasutatav orgaaniline aine, mis on tekkinud keskkonda hiljuti moodustunud organismide elutegevusest.
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