
Kafli 3 og 4
Authored by Þórhallur Halldórsson
Science
12th Grade
Used 6+ times

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17 questions
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1.
LABELLING QUESTION
1 min • 5 pts
Merktu inn á myndina
Litningur (DNA)
Svipa
Netkorn
Frumuhimna
Frumuveggur
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hlutverk netkorna er...
...að raða saman amínósýrum
...mynda grófa frymisnetið
...brjóta niður prótein
...mynda mRNA
3.
MATCH QUESTION
1 min • 5 pts
Paraðu saman
rRNA
mRNA
Ákvarðar röð amínósýra sem mynda prótín
Netkorn
Myndar mRNA úr DNA fyrir umritun
Stór RNA sameind í netkorninu sem hvatar áfram virkni þess
tRNA
Flytur amínósýrur til netkorna
Myndar prótein út frá mRNA
RNA polymerase
4.
DRAG AND DROP QUESTION
1 min • 4 pts
DNA er í (a) en netkornin eru í (b) . Til að koma upplýsingum frá (c) til netkorna er tekið afrit af DNAinu sem kallast (d) , það fer svo út í umfrymið þar sem netkornin lesa það og þýða yfir í prótein
5.
MULTIPLE SELECT QUESTION
45 sec • 3 pts
Hvatberar hafa...
...hringlaga litning eins og bakteríur
... líklega verið sjálfstæðar bakteríur hér áður fyrr
...getu til að brenna lífrænum efnum með súrefni
...getu til að ljóstillífa
6.
LABELLING QUESTION
1 min • 5 pts
Merktu inn á myndina
Litni
Kjarni
Deilikorn
Kjarnakorn
Hvatberi
Grófa frymisnetið
7.
DRAG AND DROP QUESTION
1 min • 1 pt
Í heilkjörnungum er DNA tengt við (a) prótein og kallast þá (b) , sem mynda litninga heilkjörnunga. Litningur getur haft tugi þúsunda gena. Mörg gen innihalda upplýsingar um hvernig búa á til (c) . Önnur gen skrá fyrir (d) . DNA stjórnar allri starfsemi frumunnar með því að kveikja eða slökkva á genum.
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