Question
A virus mutates, and therefore it has which of the following traits of living things?(1 point)
Responses
It uses energy.
It uses energy.
It is made of cells.
It is made of cells.
It evolves.
It evolves.
It grows and develops.
Responses
It uses energy.
It uses energy.
It is made of cells.
It is made of cells.
It evolves.
It evolves.
It grows and develops.
Answers
GPT-4o mini
The correct response regarding a virus mutating is:
**It evolves.**
Viruses can undergo mutations, which is a form of evolution. However, they do not use energy in the same way living organisms do, they are not made of cells (they are considered acellular), and they do not grow and develop like living organisms.
**It evolves.**
Viruses can undergo mutations, which is a form of evolution. However, they do not use energy in the same way living organisms do, they are not made of cells (they are considered acellular), and they do not grow and develop like living organisms.
x
Compare a virus to a unicellular organism.(1 point)
Responses
Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.
Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.
Viruses need energy; unicellular organisms do not need energy.
Viruses need energy; unicellular organisms do not need energy.
Neither unicellular organisms nor viruses respond to stimuli.
Neither unicellular organisms nor viruses respond to stimuli.
Viruses reproduce through asexual reproduction; unicellular organisms need a host cell.
Responses
Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.
Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.
Viruses need energy; unicellular organisms do not need energy.
Viruses need energy; unicellular organisms do not need energy.
Neither unicellular organisms nor viruses respond to stimuli.
Neither unicellular organisms nor viruses respond to stimuli.
Viruses reproduce through asexual reproduction; unicellular organisms need a host cell.
GPT-4o mini
The correct comparison between a virus and a unicellular organism is:
**Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.**
This statement accurately describes the structural differences between unicellular organisms and viruses. Unicellular organisms have a cell membrane, while viruses do not have a cellular structure and are composed of a protein coat (capsid) that encases their genetic material. The other options contain inaccuracies regarding the characteristics and life processes of viruses and unicellular organisms.
**Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.**
This statement accurately describes the structural differences between unicellular organisms and viruses. Unicellular organisms have a cell membrane, while viruses do not have a cellular structure and are composed of a protein coat (capsid) that encases their genetic material. The other options contain inaccuracies regarding the characteristics and life processes of viruses and unicellular organisms.
x
Summarize the lytic cycle.(1 point)
Responses
A virus copies its genetic material and then splits its cell membranes in half to form identical viruses.
A virus copies its genetic material and then splits its cell membranes in half to form identical viruses.
The viral DNA incorporates itself with the host cell’s and replicates whenever the host cell replicates itself.
The viral DNA incorporates itself with the host cell’s and replicates whenever the host cell replicates itself.
A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.
A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.
A virus lays eggs on the host cell’s protein coat, which then hatch and move on to infect other cells.
Responses
A virus copies its genetic material and then splits its cell membranes in half to form identical viruses.
A virus copies its genetic material and then splits its cell membranes in half to form identical viruses.
The viral DNA incorporates itself with the host cell’s and replicates whenever the host cell replicates itself.
The viral DNA incorporates itself with the host cell’s and replicates whenever the host cell replicates itself.
A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.
A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.
A virus lays eggs on the host cell’s protein coat, which then hatch and move on to infect other cells.
GPT-4o mini
The correct summary of the lytic cycle is:
**A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.**
This accurately describes the process of the lytic cycle, where the virus infects a host cell, uses the cellular machinery to replicate its genetic material and produce new viral particles, and then causes the host cell to burst (lyse), releasing the newly formed viruses to infect additional cells.
**A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.**
This accurately describes the process of the lytic cycle, where the virus infects a host cell, uses the cellular machinery to replicate its genetic material and produce new viral particles, and then causes the host cell to burst (lyse), releasing the newly formed viruses to infect additional cells.
x
Differentiate between the lysogenic and lytic cycles.(1 point)
Responses
The host cell is destroyed during the lytic cycle.
The host cell is destroyed during the lytic cycle.
The host cell copies its own DNA during the lytic cycle.
The host cell copies its own DNA during the lytic cycle.
Viral proteins are synthesized during the lysogenic cycle.
Viral proteins are synthesized during the lysogenic cycle.
The virus injects DNA into the host cell during the lysogenic cycle.
Responses
The host cell is destroyed during the lytic cycle.
The host cell is destroyed during the lytic cycle.
The host cell copies its own DNA during the lytic cycle.
The host cell copies its own DNA during the lytic cycle.
Viral proteins are synthesized during the lysogenic cycle.
Viral proteins are synthesized during the lysogenic cycle.
The virus injects DNA into the host cell during the lysogenic cycle.
GPT-4o mini
The correct differentiation between the lysogenic and lytic cycles is:
**The host cell is destroyed during the lytic cycle.**
In the lytic cycle, the virus causes the host cell to lyse (burst), resulting in the destruction of the host cell. In contrast, during the lysogenic cycle, the viral DNA integrates into the host cell's genome and can replicate along with the host cell's DNA without immediately destroying the host cell. The other responses provided do not accurately describe the differences between these two viral life cycles.
**The host cell is destroyed during the lytic cycle.**
In the lytic cycle, the virus causes the host cell to lyse (burst), resulting in the destruction of the host cell. In contrast, during the lysogenic cycle, the viral DNA integrates into the host cell's genome and can replicate along with the host cell's DNA without immediately destroying the host cell. The other responses provided do not accurately describe the differences between these two viral life cycles.
x
Why do doctors recommend people get the flu vaccine every year rather than every few years?(1 point)
Responses
They should get the flu vaccine because viruses do not mutate.
They should get the flu vaccine because viruses do not mutate.
They should get the flu vaccine because their bodies already have a resistance.
They should get the flu vaccine because their bodies already have a resistance.
They should get the flu vaccine because viruses mutate.
They should get the flu vaccine because viruses mutate.
They should get the flu vaccine because their bodies do not build up resistance.
Responses
They should get the flu vaccine because viruses do not mutate.
They should get the flu vaccine because viruses do not mutate.
They should get the flu vaccine because their bodies already have a resistance.
They should get the flu vaccine because their bodies already have a resistance.
They should get the flu vaccine because viruses mutate.
They should get the flu vaccine because viruses mutate.
They should get the flu vaccine because their bodies do not build up resistance.
GPT-4o mini
The correct reason why doctors recommend people get the flu vaccine every year is:
**They should get the flu vaccine because viruses mutate.**
Influenza viruses are known to undergo frequent mutations, leading to changes in their surface proteins. These changes can result in new strains of the virus that may not be effectively recognized by the immune system based on previous infections or vaccines. Therefore, updating the flu vaccine annually helps to ensure that it is effective against the currently circulating strains of the virus.
**They should get the flu vaccine because viruses mutate.**
Influenza viruses are known to undergo frequent mutations, leading to changes in their surface proteins. These changes can result in new strains of the virus that may not be effectively recognized by the immune system based on previous infections or vaccines. Therefore, updating the flu vaccine annually helps to ensure that it is effective against the currently circulating strains of the virus.