1.やさしい
What is endocytosis?
- ASplitting the cytoplasm after the nucleus divides
- BTaking material into the cell by folding the membrane around it
- CMoving water across the membrane by osmosis
- DReleasing material from the cell by fusing vesicles with the membrane
2.やさしい
What is activation energy?
- AThe energy needed to start a chemical reaction
- BThe energy plants take in from sunlight
- CThe energy stored in a molecule of ATP
- DThe heat released when a reaction finishes
3.やさしい
What are round (spherical) bacteria called?
- ACocci
- BVibrios
- CBacilli
- DSpirilla
4.ふつう
突然変異とは何か。
- A組織の細胞数の変化
- B相同染色体の対合
- C分裂前に起こるDNAの通常の複製
- DDNAの塩基配列の変化
5.ふつう
赤血球をとても塩分の濃い（高張）溶液に入れた。何が起こるか。
- A水が細胞から出て、細胞が縮む
- B塩が細胞に入り、細胞が膨らむ
- C塩は通過できないので、何も変わらない
- D水が細胞に入り、細胞が破裂する
6.ふつう
細菌は通常どのように増殖するか。
- A種子をつくることによる
- B減数分裂による
- C二分裂による
- Dウイルスを出芽させることによる
7.むずかしい
A person's body temperature starts to fall in a cold room. Which responses help bring it back up?
- ASlower heart rate and less muscle activity
- BShivering and narrowing of blood vessels in the skin
- CFaster breathing and more urine production
- DSweating and widening of blood vessels in the skin
8.むずかしい
Why are mutations in mitochondrial DNA passed on only from mothers to their children?
- AMitochondrial DNA is on the X chromosome
- BSperm cells contain no DNA at all
- CThe zygote's mitochondria come from the egg
- DOnly women have mitochondria in their cells
解答
- 1. B · Taking material into the cell by folding the membrane around it
- 2. A · The energy needed to start a chemical reaction
- 3. A · Cocci
- 4. D · DNAの塩基配列の変化
- 5. A · 水が細胞から出て、細胞が縮む
- 6. C · 二分裂による
- 7. B · Shivering and narrowing of blood vessels in the skin
- 8. C · The zygote's mitochondria come from the egg
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