1.쉬움
Which sugar is found in DNA?
- AFructose
- BRibose
- CDeoxyribose
- DGlucose
2.쉬움
광합성으로 만들어지는 물질은 무엇인가요?
- A단백질과 질소
- B이산화 탄소와 물
- C포도당과 산소
- D젖산과 ATP
3.쉬움
What is a karyotype?
- AA diagram of a family's inheritance pattern
- BA list of all the proteins that a cell makes during its life
- CA map of the organelles inside a cell
- DA picture of a cell's chromosomes arranged in pairs by size
4.보통
Red-green colour blindness is X-linked recessive. A colour-blind woman (XᵇXᵇ) has children with a man with normal colour vision (XᴮY). What fraction of their sons is expected to be colour-blind?
- AAll
- BOne quarter
- COne half
- DNone
5.보통
Nerve cells release chemical messengers (neurotransmitters) stored in vesicles. By which process are they released?
- APhagocytosis
- BEndocytosis
- CExocytosis
- DOsmosis
6.보통
Why does ice float on liquid water?
- AIce molecules are lighter than liquid water molecules
- BHydrogen bonds hold ice in an open, less dense structure
- CIce contains more air than liquid water
- DIce is denser than liquid water
7.어려움
The rate of an enzyme reaction rises as substrate is added but then levels off, even when more substrate is added. Why?
- AThe enzyme has been denatured
- BThe products have turned back into substrate
- CAll the active sites are occupied
- DThe substrate has become an inhibitor
8.어려움
An inhibitor binds to an enzyme away from the active site and changes the enzyme's shape. Adding more substrate does not restore the rate. What type of inhibition is this?
- ACompetitive inhibition
- BNoncompetitive inhibition
- CDenaturation by heat
- DSubstrate saturation
정답표
- 1. C · Deoxyribose
- 2. C · 포도당과 산소
- 3. D · A picture of a cell's chromosomes arranged in pairs by size
- 4. A · All
- 5. C · Exocytosis
- 6. B · Hydrogen bonds hold ice in an open, less dense structure
- 7. C · All the active sites are occupied
- 8. B · Noncompetitive inhibition
자세한 단계별 풀이: examproblems.com에서 이 주제를 연습하세요.