1.쉬움
How does a vaccine protect a person?
- AIt trains the immune system with a harmless form of a pathogen
- BIt blocks the pathogen from entering the nose
- CIt kills all bacteria in the body straight away
- DIt replaces the person's white blood cells with stronger ones
2.쉬움
In which stage of the cell cycle does a cell spend most of its time?
- AAnaphase
- BInterphase
- CProphase
- DMetaphase
3.쉬움
What does sterilisation mean?
- AKilling only the viruses on a surface
- BReducing the number of microbes on the skin before an injection
- CKilling or removing all microorganisms, including spores
- DWashing away visible dirt with water
4.보통
What is a bacterial endospore?
- AA tough, dormant form that survives heat, drying and many disinfectants
- BA hair-like structure used to swim towards food
- CA small ring of DNA that carries antibiotic resistance genes
- DA reproductive cell that bacteria use to make new colonies quickly
5.보통
What is the role of oxygen in aerobic respiration?
- AIt accepts electrons at the end of the transport chain
- BIt is built into glucose molecules
- CIt breaks pyruvate into lactic acid
- DIt is split to release the energy needed for glycolysis
6.보통
Which type of graph is best for comparing the number of patients with each ABO blood type?
- AA histogram
- BA scatter plot
- CA line graph
- DA bar graph
7.어려움
Why can O-negative red blood cells be given to patients of almost any blood type in an emergency?
- AThey carry no A, B or RhD antigens
- BTheir plasma contains anti-A and anti-B antibodies
- CThey have no haemoglobin to react with
- DThey carry all of the A, B and RhD antigens
8.어려움
The field of view of a microscope is 0.5 mm wide. About 10 cells fit across it in a line. What is the approximate width of one cell?
- A50 µm
- B0.5 µm
- C500 µm
- D5 µm
정답표
- 1. A · It trains the immune system with a harmless form of a pathogen
- 2. B · Interphase
- 3. C · Killing or removing all microorganisms, including spores
- 4. A · A tough, dormant form that survives heat, drying and many disinfectants
- 5. A · It accepts electrons at the end of the transport chain
- 6. D · A bar graph
- 7. A · They carry no A, B or RhD antigens
- 8. A · 50 µm
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