1.やさしい
What is the job of the capsule found around some bacteria?
- AIt protects the cell, for example from white blood cells
- BIt helps the bacterium make energy by photosynthesis
- CIt is used to swim through liquids
- DIt holds the bacterium's main chromosome
2.やさしい
What is the main material in the cell walls of fungi?
- APeptidoglycan
- BChitin
- CCellulose
- DCollagen
3.やさしい
What is a model in science?
- AA single measurement from an experiment
- BA simplified representation of a real system
- CThe control group of a study
- DAn exact copy that has no limitations
4.ふつう
Why does ice float on liquid water?
- AHydrogen bonds hold ice in an open, less dense structure
- BIce contains more air than liquid water
- CIce molecules are lighter than liquid water molecules
- DIce is denser than liquid water
5.ふつう
正常なヒトの卵細胞には、染色体がいくつあるか。
- A46
- B92
- C23
- D22
6.ふつう
Why do root hair cells have long, thin extensions?
- ATo anchor the plant firmly against strong winds and rain
- BTo increase the surface area for absorbing water
- CTo carry out photosynthesis underground
- DTo store starch for the winter
7.むずかしい
Starch and cellulose are both made of glucose. Why can humans digest starch but not cellulose?
- ACellulose dissolves in water but starch does not
- BCellulose contains no glucose units at all, only fructose
- CStarch is a protein, and cellulose is a lipid
- DHumans lack an enzyme that breaks the bonds in cellulose
8.むずかしい
血液型A型(遺伝子型Iᴬi)の母親とB型(Iᴮi)の父親の間に子が生まれる。可能な血液型はどれか。
- AAB型のみ
- BA型とB型のみ
- CA型、B型、AB型のみ
- DA型、B型、AB型、O型
解答
- 1. A · It protects the cell, for example from white blood cells
- 2. B · Chitin
- 3. B · A simplified representation of a real system
- 4. A · Hydrogen bonds hold ice in an open, less dense structure
- 5. C · 23
- 6. B · To increase the surface area for absorbing water
- 7. D · Humans lack an enzyme that breaks the bonds in cellulose
- 8. D · A型、B型、AB型、O型
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