Chap 4-6 Flashcards
What is the causative agent for Lyme disease?
A spirochete
Lyme disease is transmitted by ticks and is characterized by a distinctive rash.
Which organism is a common cause of peptic ulcers?
H. PYloriC
Helicobacter pylori is a type of bacteria that can lead to stomach inflammation and ulcers.
How are Staphylococci and Streptococci classified?
Gram positive cocci
These bacteria are often involved in various infections.
What term refers to bacteria whose overall shape is spherical or nearly spherical?
Cocci
Cocci can exist in various arrangements, affecting their classification.
What are Sarcinae?
Cocci arranged in cubes of eight
This arrangement occurs when daughter cells remain attached after division.
What do you call microorganisms that acquire energy from light?
Phot autoTroph
These organisms are crucial in ecosystems as primary producers.
What is the term for microorganisms that grow only in the presence of oxygen?
Obligate aerobes
These organisms require oxygen for their metabolic processes.
What type of rash is typical of Lyme disease?
A ‘bull’s-eye’ rash
This distinctive rash appears in a circular pattern and is often an early sign of infection.
What is the time required for doubling of the bacterial population called?
Generation time
This metric is important for understanding bacterial growth rates.
How many groups does the Baltimore classification system place viruses into?
Seven groups
This classification is based on the type of genetic material in the virus.
What do viruses consist of?
Genetic material housed in the viral coat or Capsid
The capsid protects the viral genome and aids in infection.
What is an envelope in the context of viruses?
A structure that surrounds the capsid
The envelope is often derived from the host cell’s membrane.
What type of virus commonly causes respiratory illnesses and is non-enveloped?
Adenoviruses
Adenoviruses can lead to a variety of illnesses, including colds and conjunctivitis.
What is a persistent infection that is not lytic but productive called?
Chronic infection
Such infections can lead to long-term health issues.
What is a virus that infects bacteria called?
Bacteriophage
Bacteriophages are important in molecular biology and genetic engineering.
What causes Kuru?
A VI On
Kuru is a PRION disease linked to cannibalistic practices.(human brain tissue )
What is a fully assembled virus called?
A virion
This term is used to describe a complete infectious particle.
What is the phase during which no infectious phage particles can be found in a host cell?
EClIPSe
This phase occurs during the early part of the viral life cycle.
