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What else can I help you with?
When is a substance most likely to diffuse into a cell?
If there is the concentration of substance inside the cell is lesser than outside and cell membrane is permeable to the substance.
What kind of cell does a phage infect?
A phage infects bacterial cells by injecting its genetic material into the host bacterium. Once inside, the phage hijacks the bacterium's cellular machinery to replicate and produce more phage particles, ultimately leading to the bacterium's destruction.
What is the difference between virulent phage and prophage?
temperate refers to the life cycle some phages are able to perform. A temperate phage can integrate its genome into its host bacterium's chromosome, becoming a lysogen known as a prophage. A temperate phage is also able to undergo lytic life cycles, where the prophage is expressed, replicates the phage genome and produces phage progeny and the progeny phage leave the bacterium.The virulent phages have only lytic lifecycles and thus infection results in the host cell's death (due to lytic cell destruction-the phage replicates itself and then bursts the cell, releasing many copies).So they are both the same in that they both require a host cell to reproduce. They both can have lytic lifecycles but only the temperate phage can "hitch a ride" in the host cell by integrating into the genome.
What happens first when a phage infects a bacterial cell and is going to enter a lysogenic cycle?
it becomes a part of the bacterial DNA and it can be replicated into the daughter cells. this cycle doesn't harm the bacterial cell but it can change into the lysis cycle and kill the host cell
What is temperate phage superinfection immunity?
c. Repression of the phage genome - A phage coded protein, called a repressor, is made which binds to a particular site on the phage DNA, called the operator, and shuts off transcription of most phage genes EXCEPT the repressor gene. The result is a stable repressed phage genome which is integrated into the host chromosome. Each temperate phage will only repress its own DNA and not that from other phage, so that repression is very specific (immunity to superinfection with the same phage).Reference: http://pathmicro.med.sc.edu/mayer/phage.htm
When a phage attaches to a bacterium what does the phage inject and what stays attached to the cell?
When a phage attaches to a bacterium, it injects its genetic material (DNA or RNA) into the cell. The phage capsid (outer protein coat) typically stays attached to the cell surface during this process.
What substance enters and leaves a plant cell through the process of osmosis?
Water enters and leaves a plant cell through the process of osmosis. When the concentration of water inside the cell is higher than outside, water will move into the cell, and when the concentration is higher outside, water will leave the cell.
When is a substance most likely to diffuse into a cell?
If there is the concentration of substance inside the cell is lesser than outside and cell membrane is permeable to the substance.
What phage in the reproductive cycle kills the bacterial host cell?
In the lytic cycle, a phage kills the bacterial host cell by causing it to burst (lysis) to release new phage particles. The phage replicates inside the host cell until it reaches a critical point, then the host cell is ruptured to release the new phages to infect other host cells.
When a T2 bacteriophage infects an E. coli cell what part of the phage enters the bacterial cytoplasm?
the whole phage
4 substance that enters and leaves through the cell membrane?
food enters, waste leaves
Is the f plus cell the recipient cell?
transfer of genes via a phage
What type of phage enters an inactive prophage stage?
A temperate phage is a type of phage that can enter an inactive prophage stage by integrating its DNA into the host cell's genome. In this stage, the prophage replicates along with the host cell's DNA and can be passed on to daughter cells during cell division.
What is the cell process called when a higher concentration of substance is outside the cell?
Exo-osmosis
The substance outside animal cells?
I believe it is the cell membrane!
What is the difference between a virulent phage and a temperate phage?
In virology, temperate refers to the life cycle some phages are able to perform. Atemperate phage can integrate its genome into its host bacterium's chromosome, becoming a lysogen known as a prophage. A temperate phage is also able to undergo lytic life cycles, where the prophage is expressed, replicates the phage genome and produces phage progeny and the progeny phage leave the bacterium. The virulent phages have only lytic lifecycles and thus infection results in the host cell's death (due to lytic cell destruction-the phage replicates itself and then bursts the cell, releasing many copies).
What does phage DNA do once inside the host cell?
Once inside the host cell, phage DNA utilizes the host cell's machinery to replicate itself. It takes over the cellular processes and redirects them towards the production of new phages. The phage DNA is transcribed and translated to synthesize the necessary components for phage assembly, ultimately resulting in the formation of progeny phages inside the host cell.
