a rod-shaped bacteria transmitted through the air and it purplish when dyed
What are three examples of bacteria?
salmonella
streptococcus pnuemoniac(strep throat and pnuemonia)
ghonnorhea
Is bacterial meningitis or viral meningitis worse?
Bacterial
True or false-bacteria have cell walls
true
What is unique about a bacteria's chromosomes?
there is one circular chromosome
What is the outer capsule on a bacteria used for?
protection
What are flagella?
whip-like protrusions that allow a bacteria to move
What are archaebacteria?
ancient bacteria that live in extreme conditions
love high temperatures and acid
halophiles(salt)
methane gas(produce methanogens)
they usually do not need oxygen or are anaerobic
What are eubacteria?
true bacteria that are found in diverse environments
most cell walls contain peptidoglycan(carbohydrates)
they form colonies or clumps or flaments
Bacteria can be one or more of the following...
heterotrophs
autotrophs
-chemotrophs
-phototrophs
Are viruses cells? Why not?
Viruses are NOT cells because viruses do not grow and have no life span, viruses do not use energy, and viruses reproduce but only in other cells by using that cell's energy
What are viruses made of?
They are composed of a nucleic acid (DNA or RNA) and surrounded by a protein coat called a capsid. Some viruses also have additional viral envelopes.
What is a capsid?
A protein coat surrounding a virus
What are the three possible shapes of a virus?
polyhedral
helical
spericle
Viruses' _ allow them to attach only to specific cells. Thus, they can only infect certain organisms, some can affect several different speicies
capsids
What is a bacteriophage?
A virus that infects a bacteria
Label the parts of the bacteriophage.
What are the steps to the lytic cycle?
1. Attachment
2. Penetration
3. Biosynthesis(replication)
4. Maturation
5. Release(lysis)
What is different of the lysogenic cycle compared to the lysic cycle?
the lysogenic cycle is the same as the lytic cycle exceot the viral DNA joins the host cell DNA
Author
Anonymous
ID
74890
Card Set
Viruses/Bacteria Quiz
Description
Viruses and bacteria review for 9th grade biology in Gwinnett County