1.やさしい
What do bacteria use flagella for?
- AStoring food
- BCopying their DNA
- CMoving from place to place
- DMaking proteins from amino acids
2.やさしい
Which pigment absorbs light energy for photosynthesis?
- AMelanin
- BHaemoglobin
- CKeratin
- DChlorophyll
3.やさしい
DNAなどの核酸の単量体は何か。
- Aグリセロール分子
- Bヌクレオチド
- Cグルコース分子
- Dアミノ酸
4.ふつう
How do embryonic stem cells differ from most adult stem cells?
- AThey can become almost any cell type, while adult stem cells are more limited
- BThey are found only in plants, while adult stem cells are found in animals
- CThey can no longer divide, while adult stem cells divide quickly
- DThey are haploid, while adult stem cells are diploid
5.ふつう
A solution of pH 4 is compared with a solution of pH 6. How many times more hydrogen ions does the pH 4 solution have?
- A2 times
- B100 times
- C20 times
- D10 times
6.ふつう
赤血球を純水に入れた。最も起こりやすいのはどれか。
- A膨らんで、破裂することがある
- B2 つの細胞に分裂する
- C縮んで、しわが寄る
- D同じ大きさのままである
7.むずかしい
赤血球を、細胞質と溶質濃度が同じ溶液に入れた。何が起こるか。
- A細胞が膨らんで破裂する
- B水が出ていき、細胞が縮む
- C水分子が、どちらの方向にも膜を通らなくなる
- D水の正味の移動はなく、細胞は形を保つ
8.むずかしい
Finches on the Galápagos Islands have different beak shapes on islands with different foods. What is the best explanation?
- AThe birds were all created with the same beak and it never changed
- BNatural selection favoured beaks suited to each food source
- CEach bird changed its beak by using it more
- DThe beaks changed because the birds chose to eat new food
解答
- 1. C · Moving from place to place
- 2. D · Chlorophyll
- 3. B · ヌクレオチド
- 4. A · They can become almost any cell type, while adult stem cells are more limited
- 5. B · 100 times
- 6. A · 膨らんで、破裂することがある
- 7. D · 水の正味の移動はなく、細胞は形を保つ
- 8. B · Natural selection favoured beaks suited to each food source
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