Fill in the Blank #1
Archaea that live in the intestines of animals and that produce gas are known as
methanogens
occurs when a plasmid is transferred from one bacterium to another through a pilus
conjugation
occurs when a bacterium takes in a piece of DNA from its environment
transformation
List the three primary part of a bacterial flagellum
motor, hook, filament
produces two identical bacterial cells from one bacterial cell
binary fission
Which of the following is NOT a characteristic of archaea?
a. include species that produce methane
b. many live in extreme environments
c. eukaryotic
d. peptidoglycan is absent from their cell walls
c. eukaryotic
occurs when genetic information is transmitted from one bacterium to another by a bacteriophage
transduction
is the most common form of reproduction in bacteria
binary fission
If a person is suffering from herpes shows no symptoms of the disease, then the herpes virus is in the _________ phase of the infection.
lysogenic
HIV/AIDS, a virus that can transcribe its own RNA into a host cell's DNA, is an example of a
retrovirus
- used to classify bacteria
- can predict whether a particular antibiotic will be effective for treating a certain bacteria
- detects amounts of peptidoglycan in the cell walls of bacteria
gram staining
Which of the following in NOT a viral disease?
a. Lyme disease
b. polio
c. Ebola
d. HIV/AIDS
The bacteria that live in the guts of an organism are collectively known as the organism's
microbiota
How does a vaccine prevent a viral disease?
using an inactivated virus that triggers the body to build an immunity protecting the child from future exposure
An infectious particle consisting of a circular strand of RNA but lacking a capsid or envelope is a
viroid
List and describe three beneficial roles of bacteria.
1.Bacteria live in guts of many organisms, helping digest food, and aiding the absorption of vitamins and minerals
2.In the environment, many bacteria are decomposers breaking down dead matter and returning nutrients to environment
3.Cyanobacteria are autotrophic and produce oxygen
What are two functions of a bacterium's capsule?
1. protects them from drying out
2. makes it difficult for white blood cells to engulf bacterium