1.やさしい
Which piece of equipment gives the most precise measurement of a liquid volume?
- AA beaker
- BA Petri dish
- CA test tube
- DA graduated cylinder
2.やさしい
What does transfer RNA (tRNA) do?
- AIt carries the code out of the nucleus
- BIt copies DNA in the nucleus
- CIt brings amino acids to the ribosome
- DIt joins two DNA strands together
3.やさしい
Which sugar is found in DNA?
- AFructose
- BRibose
- CGlucose
- DDeoxyribose
4.ふつう
Sickle cell disease is caused by a single base change that replaces one amino acid in haemoglobin. What type of mutation is this?
- AA nonsense mutation
- BA missense mutation
- CA frameshift mutation
- DA silent mutation
5.ふつう
A person catches chickenpox once and does not usually become ill with it again. Why?
- AThe skin becomes thicker after the first infection
- BThe virus stays in the blood and kills new viruses
- CMemory cells give a faster, stronger response the next time
- DAntibodies from the first infection turn into new viruses
6.ふつう
Which body system works with the respiratory system to deliver oxygen to body cells?
- AThe circulatory system
- BThe urinary system
- CThe digestive system
- DThe skeletal system
7.むずかしい
Cystic fibrosis is caused by a faulty CFTR protein, which forms a chloride channel in the cell membrane. Which process is directly affected?
- ACopying of DNA in the nucleus
- BMovement of chloride ions through a membrane protein
- CProduction of ATP in the mitochondria
- DDiffusion of oxygen molecules through the lipid bilayer
8.むずかしい
A cell is 0.00002 m wide. Which value is equal to this width?
- A0.2 mm
- B2 µm
- C20 µm
- D200 µm
解答
- 1. D · A graduated cylinder
- 2. C · It brings amino acids to the ribosome
- 3. D · Deoxyribose
- 4. B · A missense mutation
- 5. C · Memory cells give a faster, stronger response the next time
- 6. A · The circulatory system
- 7. B · Movement of chloride ions through a membrane protein
- 8. C · 20 µm
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