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Terms
Lytic or Lysogenic
Bacteria
HIV Facts
Extra
100
What is a prokaryote?
A unicellular organism that does not have a nucleus.
100
What cycle does dormancy happen in?
In the lysogenic cycle.
100
Name the three different types of bacteria.
1. Bacilli 2. Cocci 3. Spirilla
100
What type of disease is HIV? Bacterial or Viral?
Viral disease
100
What is the definition of antibiotics?
They are used to treat some viruses.
200
What is a prophage?
It is a virus inserted into the circular bacterial DNA chromosome.
200
In the lytic cycle DNA Replication occurs. What is DNA Replication?
It is when the phage makes host cell replicate DNA.
200
What shape does each bacteria have?
Bacilli- oval-like Cocci- circle Spirilla- stringy
200
Where did HIV originate?
West Central Africa
200
What is an endospore?
It is a layer that protects the DNA from degradation in harsh environments.
300
What is specificity?
It is what a virus can infect.
300
What life cycle does lysis take place in?
The lytic cycle.
300
What is binary fission?
Binary fission is the division of one cell into two identical cells.
300
What is so important about HIV?
It is a retrovirus that contains single-stranded RNA.
300
What is the definition of infection?
Phage injects DNA into host cell (virus enters host cell).
400
What is bacteriophage?
It is a bacterial virus.
400
What life cycle goes through infection first?
Both the lytic and lysogenic cycles.
400
How would staphylo-bacilli look like and how would diplo-bacilli look like?
Staphlo-bacilli would look like a big clump of ovals Diplo-bacilli would look like a couple of ovals
400
How is RNA contracted?
By the exchange of bodily fluids.
400
What is the role of a virus?
To infect a cell with its DNA and copy the DNA to create more viruses to lyse out.
500
What is a pili and what does it do?
It forms to move a plasid from the F+ to the F-.
500
Give an example of both cycles. Which cycle can happen again?
An example of the lysogenic cycle is shingles. An example of the lytic cycle is chicken pox. The lytic cycle can happen again.
500
What is it called when the pili forms and a plasmid is transported from F+ cell to F-?
Conjugation.
500
Which leading cause of death is HIV?
It is the fourth leading cause of death.
500
Explain the 1 role of bacteria: how can bacteria act in a positive way? How can bacteria act in a negative way?
Positive way: Sludge decomposition Negative way: Ecoli