Question

can you answer these
Fast reproduction by binary fission enables bacteria to
cause infections in other organisms.
quickly modify their DNA to changing conditions.
change shape from coccus to bacillus.
transfer DNA from one cell to another.

Which correctly describes a process that occurs in bacteria?
In binary fission, the two new cells that are formed are susceptible to the same antibiotic.
In conjugation, bacterial DNA is transferred from one bacterium to another by a replicating virus.
In transduction, the cells that are formed are susceptible to the same antibiotic.
In transformation, a special sex pilus is required to connect two bacterial cells.

What would happen to a bacterial cell if its protective covering was destroyed?
It would be better protected from the outside environment.
It would be able to take in materials more easily.
It would be harmed by chemicals in the environment.
It would reproduce more slowly.

Which could best be used to explain why bacteria can infect a person very quickly?
outer capsule
binary fission
protective covering
genetic recombination

Which bacterial form can be curved like a spiral, thick and rigid, or thin and flexible?
spirillum
coccus
bacillus
aerobic

Answer 1

1) cause infections in other organisms.
- Binary fission lets bacteria multiply rapidly, enabling fast spread and infection.

2) In binary fission, the two new cells that are formed are susceptible to the same antibiotic.
- Binary fission produces genetically identical daughter cells, so they generally share antibiotic susceptibility (unless a mutation occurs).

3) It would be harmed by chemicals in the environment.
- Losing the protective covering (cell wall/capsule) makes the bacterium more vulnerable to chemical damage and osmotic stress.

4) binary fission
- Rapid reproduction by binary fission explains how bacterial populations can expand quickly in a host.

5) spirillum
- Spirillum (and related spirochetes) are curved/spiral-shaped; some are thick and rigid, others thin and flexible.