Click On The Diagram To Start The Animation. What Enzyme Is Responsible For The Process Seen Here?
1
The nucleic acrid of a virus particle is enclosed in a protein coat. What is it called?
2
What exercise we call a virus that attacks a bacterium?
3
The arrow is indicating the virus's _____.
iv
Viral DNA makes mRNA by the process of _____.
5
The lytic cycle of bacteriophage infection ends with the _____.
rupture of the bacterium
The bacterium ruptures and phages are released.
half-dozen
The pointer is indicating the _____.
viral protein glaze
the viral protein coat surrounds its genome
7
As a consequence of the lytic cycle, _____.
the host cell's Dna is destroyed
The host cell's DNA is destroyed, and ultimately, the host cell itself is destroyed in the lytic cycle.
8
The arrow is indicating _____.
nine
In the lysogenic cycle _____.
viral Dna is replicated along with host Deoxyribonucleic acid
10
Cycle A is the _____ wheel and cycle B is the _____ bicycle.
xi
Sort the items according to whether they may be plant merely in free virus particles, but in uninfected host cells, or in both viruses and host cells.
viruses only: capsid, envelope with glycoproteins, capsomere (core poly peptide)
host cell merely: ribosome
both: DNA, RNA, Protein
12
The genetic material of HIV consists of _____.
unmarried-stranded RNA
The genetic material of HIV consists of two molecules of single-stranded RNA.
13
Which of these binds to receptor molecules on the host cell membrane?
A
Glycoproteins on the viral envelope recognize and bind to receptors on the host cell.
14
What is the function of reverse transcriptase?
Information technology catalyzes the formation of DNA from an RNA template.
xv
What is the source of a viral envelope?
16
Which of these is reverse transcriptase?
17
Which of these is the viral genome?
18
What enzyme is responsible for the process seen here?
opposite transcriptase
Reverse transcriptase catalyzes the formation of Dna from an RNA template.
19
Double-stranded viral DNA is incorporated into a host cell equally a _____.
provirus
"Provirus" is the proper name given to double-stranded viral DNA that has been incorporated into a host cell'south genome.
20
How does HIV cause disease?
HIV kills cells that defend the body against illness.
21
How do enveloped viruses differ from nonenveloped viruses?
They have a membrane-like outer covering.
22
Which replicative bike describes a virus that can integrate its genome into the host cell's genome?
23
Which enzyme inserts viral Dna into the host's chromosomal Dna?
24
How does HIV bind to a host cell?
The viral envelope proteins interact with CD4 and a co-receptor on the cell membrane.
25
Which of the following events stimulates the production of viral particles in a host cell?
Activation of the host prison cell by cytokines, growth factors, or antigens.
26
Truthful or simulated? The human being immunodeficiency virus (HIV) uses reverse transcriptase to make double-stranded RNA copies of its DNA genome.
Fake
A retrovirus such as HIV has an RNA genome and uses contrary transcriptase to make double-stranded DNA copies of the genome, which can and so be integrated into the host cell'due south genome.
27
Why are viruses called obligate intracellular parasites?
They must use a host cell's nucleotides for transcription and replication.
They must use a host cell's amino acids to synthesize proteins.
They must use a host cell's ribosomes to synthesize proteins.
They must apply a host prison cell'south metabolic enzymes and pathways to obtain energy.
All of the higher up.
28
Why are retroviruses considered a special form of viruses?
They transcribe RNA to Deoxyribonucleic acid using opposite transcriptase.
29
HIV uses which of the following processes to synthesize a DNA strand using its RNA genome equally a template?
thirty
What is the nearly constructive way to stop viral infections?
vaccines
Vaccines stimulate the immune system to recognize and effectively fight off invading viruses. They have proven to be the almost constructive weapon confronting viruses.
31
A plant that has been raised in a sterile environment shows symptoms of a viral infection. How would you explain this?
The viral infection was caused by vertical transmission.
32
The H1N1 2009 outbreak is considered to accept been which of the post-obit?
33
How do prions, which are misfolded proteins, infect organisms?
Prions enter brain cells and cause normal forms of the protein to refold into the prion form.
34
Why do RNA viruses appear to have higher rates of mutation?
Replication of their genomes does not involve proofreading.
35
Emerging viruses arise past
the spread of existing viruses to new host species.
mutation of existing viruses.
the spread of existing viruses more widely within their host species
36
Which of the following characteristics, structures, or processes is common to both leaner and viruses?
genetic material composed of nucleic acid
37
To cause a human pandemic, the H5N1 avian flu virus would take to
become capable of homo-to-human transmission.
38
RNA viruses require their own supply of certain enzymes because
host cells lack enzymes that tin replicate the viral genome.
39
How does a virus differ from a bacterium?
Viruses, unlike bacteria, lack metabolic enzymes.
Viruses lack metabolic enzymes and equipment for making proteins, such as ribosomes.
40
Why is it ineffective to treat viral illness with antibiotics?
Antibiotics inhibit enzymes specific to bacteria and take no upshot on virally encoded enzymes.
41
How do prions differ from viruses?
Different a virus, a prion is a unmarried molecule.
Unlike viruses, prions are infectious proteins.
Dissimilar viruses, prions practise not include whatever nucleic acids.
Source: https://www.easynotecards.com/notecard_set/32964
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