No student devices needed. Know more
26 questions
Cells differ from viruses in that only cells -
have DNA and/or RNA.
are microscopic structures.
have a cell membrane &/or a cell wall.
have protective covering for genetic material.
Viruses have structures that allow them to inject their genetic material directly into the DNA of the host cell. This strategy benefits the virus in that –
the host cell is turned into a virus.
mutations are introduced into the host cell.
it is able to transform into a host cell.
the virus uses the host’s machinery to replicate.
Viruses use two different cycles of replication, the lytic cycle and the lysogenic cycle. In what way is the lysogenic cycle different from the lytic cycle?
The virus recognizes and attaches to host cell.
The host cell is not destroyed immediately.
Viral DNA is replicated along with host DNA.
The virus injects its DNA into the host cell..
A bacteriophage is a type of virus that infects only a bacterial host cell. A bacteriophage can’t cause disease in humans because it –
does not have the correct surface proteins for attachment.
can only use bacterial DNA to replicate.
gets destroyed in the human digestive tract.
is able to reproduce without a host cell.
Bacteria and viruses have all of the following in common except:
Genetic material
No membrane bound organelles
Cytoplasm
Protein Coat
The viral structure responsible for recognizing specific host cells is –
a glycoprotein
genetic material.
a retrovirus.
a bacteriophage.
A bacteriophage virus causes infection in bacteria by injecting which of the following?
DNA
Hormones
Proteins
Lipids
Which of the following characteristics is shared by viruses and living cells? Both viruses and living cells –
have a nucleus, as well as a cell wall.
contain nucleic acids such as DNA or RNA.
can replicate independently of a host cell.
use organelles to perform life functions.
Which organism requires a host cell's machinery for reproduction?
bacteria
plant cells
viruses
animal cells
Which viral reproductive cycle produces symptoms such as fever in their host organism soon after the virus replicates?
lysogenic cycle
carbon cycle
nitrogen cycle
lytic cycle
An infectious particle made of a strand of nucleic acid surrounded by protein coat is a
prion
bacteria
virus
viroid
Any organism or particle that can cause an infectious disease is called a
bacteria
virus
viroid
pathogen
In which of the following types of infection will the infected host cell burst?
lysogenic infection
prophage infection
provirus infection
lytic infection
Which of the following is a synonym for "replicate?"
reproduce
revolve
relief
repeat
True or False? Viruses are made of cells.
True
False
Which form of viral reproduction do virus replicate the quickest?
lysogenic
lytic
analytic
cryogenic
The HIV virus attacks cells from which body system?
nervous system
immune system
digestive system
integumentary system
Antibiotics are effective against which type of cell?
bacterial
animal
plant
fungal
When a virus becomes dormant in the cell of its host, it is exhibiting which type of viral reproduction?
cryogenic
lytic
lysogenic
analytic
In which stage are viral parts made prior to their assembly?
attachment
lysis
replication
entry
A person experiencing a quick onset of symptoms from a viral infection has encountered which viral cycle?
lytic cycle
lysogenic cycle
infectious cycle
viral life cycle
Single-celled eukaryotes divide by which method?
fertilization of an ovum
simple division
spontaneous regeneration
long division
Which of the following is the correct order of the lytic cycle?
lysis, assembly, replication, attachment
replication, lysis, assembly, attachment
attachment, assembly, replication, lysis
attachment, replication, assembly, lysis
Which viral cycle lays dormant in the host cells DNA?
unicycle
lytic cycle
lysogenic cycle
tricycle
Which of the following are found in a bacterial cell? Check all that apply.
cytoplasm
ribosomes
cell wall
membrane bound organelles
DNA
Check all that make up a structure of a bacteriophage -
membrane bound organelles
DNA or RNA
protein capsid
tail fibers
Explore all questions with a free account