Bacteria
How many cells make up a prokaryote?
1 (unicellular)
The DNA or RNA core of a virus is encompassed by a protein coat called a _______
Capsid
Which viral infection cycle will cause the host cell to burst and die
Lytic cycle
The deadliest being on planet earth is
The bacteriophage
Antibiotics block the growth and reproduction of
bacteria
What are the two kingdoms of bacteria?
Eubacteria and Archaebacteria
To reproduce viruses must
Infect a host and use their machinery
A prophage is from which cycle and where the prophage come from
Lysogenic and the virus
Bacteriophages attack and kill _________
Bacteria
What is the genetic information of a retro virus?
RNA
When would a bacteria produce an endospore?
Unfavourable conditions
List the 4 main parts of a T4 bacteriophage
Head, DNA, Tail Sheath, Tail fibres
The phage DNA enters the bacterium and forms what type of shape?
Circle
What has been our superweapon against bacteria for years?
Antibiotics
What are two ways of preventing bacterial disease
Vaccine and antibiotics
What would happen to plants if bacteria did not decompose dead material anymore?
They would die off due to a lack of nutrients in the soil.
What does "lock and key" refer to for viruses and how they bind to the host cell
Viruses are specific to the cells that they infect
During which cycle is the viral DNA reproduced with the bacterium DNA
Lysogenic cycle
A bacteria that is immune to almost everything that we have are called ________
Superbugs
List two ways that would control bacteria
refrigerator, sterilizing due to heat, disinfectants that are "antibacterial"
A photoheterotroph uses ______________ for energy but also needs _________________
sunlight for energy but also need to take in organic compounds as a carbon source
Give two reasons why most biologists consider viruses to be non-living
not made of cells, can't live independently, has No growth and development, doesn't respond to the environment, don't obtain and use energy
What two things must be made by the host cell's machinery before new viruses are assembled?
DNA and Proteins
For bacteria to become resistant to bacteriophages they have to give up what other type of resistance?
Antibiotic Resistance
What are the two ways that bacteria produce disease in humans?
1. damage the cells directly breaking them down for food
2. bacteria can release toxins