1.やさしい
In biology, what is a clone?
- AA cell with an extra chromosome
- BAn organism that carries genes from two different species
- CAn offspring of two different parents
- DA genetically identical copy of an organism, cell or gene
2.やさしい
How many micrometres (µm) are in one millimetre?
- A1000
- B10
- C1 000 000
- D100
3.やさしい
What is transpiration?
- AThe movement of sugars through the phloem to the roots
- BThe loss of water vapour from the leaves of a plant
- CThe taking in of CO₂ for photosynthesis
- DThe growth of roots towards water
4.ふつう
Which polymer is correctly matched with its monomer?
- AGlycogen and fatty acid
- BStarch and glucose
- CProtein and nucleotide
- DDNA and amino acid
5.ふつう
Which body system works with the respiratory system to deliver oxygen to body cells?
- AThe digestive system
- BThe circulatory system
- CThe skeletal system
- DThe urinary system
6.ふつう
体細胞分裂のどの時期に、染色体が細胞の中央に並ぶか。
- A終期
- B前期
- C中期
- D後期
7.むずかしい
Why does the influenza vaccine need to be updated most years?
- AThe vaccine damages the immune system after one year, so it must be repeated
- BThe virus keeps changing its surface proteins through mutation
- CInfluenza is caused by a different bacterium each year
- DAntibodies cannot be made against viruses
8.むずかしい
Why do phospholipids arrange themselves into a double layer in water?
- AThey are fully soluble in water
- BTheir heads are hydrophobic and their tails are hydrophilic
- CTheir heads are hydrophilic and their tails are hydrophobic
- DThey carry a strong positive charge on both ends
解答
- 1. D · A genetically identical copy of an organism, cell or gene
- 2. A · 1000
- 3. B · The loss of water vapour from the leaves of a plant
- 4. B · Starch and glucose
- 5. B · The circulatory system
- 6. C · 中期
- 7. B · The virus keeps changing its surface proteins through mutation
- 8. C · Their heads are hydrophilic and their tails are hydrophobic
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