Bacteria - structure and nutrition

Ball-shaped bacteria are
1. diplococci
2. bacilli
3. spirilla
Stick-shaped bacteria are
1. bacilli
2. diplococci
3. streptococci
a nucleoid carries about
1. 3 500 genes
2. 35 000 genes
3. 350 genes
Bacteria have lived on the Earth for
1. 3.5 billion years
2. 3.5 million years
3. 5.5 billion years
How do bacteria reproduce?
1. transverse binary division
2. sexual division
3. conjugation
Do daughter cells have the same genetic information?
1. Yes, they do.
2. No, they do not.
The source of hydrogen pro the photosynthesis by bacteria is
1. hydrogen sulphide or directly molecular hydrogen
2. the water
Lactobacillus bulgaricus is important
1. in dairy industry
2. in breweries
3. in the wine production
Bacteria permanently living without the air oxygen
1. obligatory anaerobic bacteria
2. fakultatively anaerobic bacteria
Fakultatively anaerobic bacteria
1. can live both with and without oxygen.
2. The oxygen is poisonous for them.