第一章测试1.
DNA replication in bacteria is controlled by
A:
cell initiation
B:cell separation
C:cell division
D:cell size
答案:C
2.
In times of nutrient deficiencies, the bacteria Clostridium produce____until conditions are permissive for vegetative growth
A:
prostheca
B:fruitingbodies
C:spores
D:stalks
答案:C
3.
All phototacfic bacteria respond to light by
A:
moving away from the source of light
B:increasing the movement of their flagella
C:moving toward the source of light
D:creating gas vesicles to rise to the surface
答案:D
4.
Staphylococcus aureus stained by the gram method appear red in color.
A:错 B:对
答案:A
5.
Which one is the world largest known bacterium?
A:Thiomargarita namibiensis B:Bacillus subtilis C:Epulopiscium fishelsoni D:Escherichia coli
答案:A
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