1.やさしい
What is transpiration?
- AThe growth of roots towards water
- BThe movement of sugars through the phloem to the roots
- CThe loss of water vapour from the leaves of a plant
- DThe taking in of CO₂ for photosynthesis
2.やさしい
Which kind of organism causes malaria?
- AA fungus that grows on skin
- BA protist carried by mosquitoes
- CA virus spread by coughing
- DA bacterium carried in water
3.やさしい
What are the parts of a triglyceride (a fat molecule)?
- AThree glucose units and one phosphate
- BTwo glycerols and one fatty acid
- COne amino acid and three fatty acids
- DOne glycerol and three fatty acids
4.ふつう
Why do plants wilt when the soil around their roots becomes very salty?
- ASalt blocks sunlight from reaching the leaves
- BSalt makes the root cells swell and burst
- CWater leaves the root cells by osmosis
- DThe roots take in too much water
5.ふつう
An organism is multicellular, makes its own food by photosynthesis and has cell walls of cellulose. Which kingdom does it belong to?
- APlants
- BFungi
- CBacteria
- DAnimals
6.ふつう
細胞周期のどの時期にDNAが複製されるか。
- A細胞質分裂の間
- B間期のS期
- C減数第二分裂のときだけ
- D体細胞分裂の中期
7.むずかしい
A child's DNA profile has bands A, B, C and D. The mother has bands A and C. Man 1 has bands B and D, man 2 has A and E, and man 3 has C and F. Which man could be the biological father?
- ANone of them
- BMan 1
- CMan 3
- DMan 2
8.むずかしい
After a long course of broad-spectrum antibiotics, a patient develops severe diarrhoea caused by Clostridioides difficile. What is the most likely reason?
- AThe antibiotics made the gut lining produce spores
- BC. difficile was made by the patient's own immune system
- CThe antibiotics killed normal gut bacteria that kept C. difficile in check
- DThe antibiotics changed some of the harmless gut bacteria into C. difficile
解答
- 1. C · The loss of water vapour from the leaves of a plant
- 2. B · A protist carried by mosquitoes
- 3. D · One glycerol and three fatty acids
- 4. C · Water leaves the root cells by osmosis
- 5. A · Plants
- 6. B · 間期のS期
- 7. B · Man 1
- 8. C · The antibiotics killed normal gut bacteria that kept C. difficile in check
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