WorksheetsBacterial Growth and Genetics
Total questions: 10
Worksheet time: 6mins
The majority of human pathogens are mesophiles.
True
False
Regarding binary fission:
It is the fusion of two cells undergoing mitosis.
It is the division of two eukaryote cells.
Genetic materials are vertically transferred.
A biochemical process involving two skin cells.
Which of the following is NOT a trace element for bacterial growth?
Heme.
Carbon.
Amino acids.
Vitamins.
Regarding facultative anaerobes bacteria:
They grow best when oxygen is present.
Oxygen has no effect on their growth pattern.
They require a low concentration of oxygen.
They grow when oxygen is absent.
Capnophile bacteria require high oxygen concentration.
True
False.
Regarding microbiological media:
The liquid broth is used for the isolation of bacteria.
Transport media consist of a semi-solid agar.
Differential media suppress the growth of unwanted bacteria.
Enrichment media contain inhibitors.
Transport media prolong the viability of pathogenic organisms.
True.
False.
Regarding the bacterial growth phase:
The lag phase will take less than 5 hours to complete.
Limited sources in the lag phase slow down the bacterial growth.
Bacteria divide exponentially during stationary phase.
Bacteria are infectious during the exponential phase.
In which phase would you expect to observe the most endospores in Bacillus cell culture?
Lag phase.
Log phase.
Stationary phase.
Death phase.
During which phase would penicillin be most effective?
Lag phase.
Log phase.
Stationary phase.
Death phase.
