1.やさしい
Which carbohydrate forms plant cell walls and acts as dietary fibre?
- ALactose
- BGlycogen
- CCellulose
- DGlucose
2.やさしい
Which enzyme unwinds the DNA double helix and separates the two strands for copying?
- AAmylase
- BHelicase
- CLigase
- DLipase
3.やさしい
What are stomata?
- AGreen structures in the leaf that store starch
- BHairs on roots that absorb minerals
- CTubes that carry water up the stem
- DSmall pores in leaves that allow gas exchange
4.ふつう
What is the difference between an antiseptic and a disinfectant?
- AAntiseptics are used on objects and floors; disinfectants are used on skin
- BAntiseptics are antibiotics; disinfectants are vaccines
- CAntiseptics are used on living tissue; disinfectants are used on objects
- DAntiseptics kill all spores; disinfectants kill none
5.ふつう
What is the difference between an epidemic and a pandemic?
- AA pandemic spreads across many countries or continents
- BA pandemic affects only one town
- CAn epidemic is caused only by bacteria
- DAn epidemic affects the whole world at once
6.ふつう
Nerve cells release chemical messengers (neurotransmitters) stored in vesicles. By which process are they released?
- AOsmosis
- BPhagocytosis
- CEndocytosis
- DExocytosis
7.むずかしい
When caring for a patient with C. difficile infection, why is hand washing with soap and water preferred over alcohol hand rub?
- ASoap and water are faster than alcohol rub
- BAlcohol does not kill its spores, but washing removes them
- CAlcohol makes the spores more infectious
- DSoap kills the spores, but alcohol only kills viruses and not bacteria
8.むずかしい
ペプシンは、pHが約 2 の胃ではたらく。pHが約 8 の小腸では、その活性はどうなるか。
- A最適pHから大きく離れるため、低下する
- B脂肪を消化する別の酵素に変わる
- C酵素はアルカリ性の条件を好むため、上昇する
- DpHは酵素に影響しないため、変わらない
解答
- 1. C · Cellulose
- 2. B · Helicase
- 3. D · Small pores in leaves that allow gas exchange
- 4. C · Antiseptics are used on living tissue; disinfectants are used on objects
- 5. A · A pandemic spreads across many countries or continents
- 6. D · Exocytosis
- 7. B · Alcohol does not kill its spores, but washing removes them
- 8. A · 最適pHから大きく離れるため、低下する
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