BIOLOGY 101 GIZMO Virus Lytic Cycle
Student Exploration Sheet
Name: Samuel Rojas Date: 4/13/2020
Student Exploration: Virus Lytic Cycle
Vocabulary: bacteriophage, capsid, host cell, lyse, lytic cycle, virus
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
1. A computer virus is a program that can copy itself and infect a computer without the
permission of the owner. How do you think a computer virus compares to a real virus?
A computer Virus and a real virus are very similar because theey both duplicate and infect the
host in order to harm the host.
m
er as
co
eH w
2. Have you ever been infected with a virus, such as the cold virus or flu virus? Yes
o.
rs e
ou urc
3. If so, how did the virus affect you? I felt like i didn't have energy, and I was coughing and
Sneezing all the time, most likely because my body was fighting against the virus.
o
aC s
Gizmo Warm-up
vi y re
A virus is a microscopic particle that can infect a cell.
Viruses are primarily composed of a protein coat,
called a capsid, and nucleic acid. In the Virus Lytic
Cycle Gizmo™, you will learn how a virus infects a
ed d
cell and uses the cell to produce more viruses.
ar stu
1. Viruses are extremely small. A typical virus is
about 100 times smaller than a single cell, such
as a bacterium. Label the virus and a bacterial
is
cell in the image at right.
Th
2. Bacteriophages are
viruses that infect
bacteria. Based on the
sh
diagram at left, label
the head, tail, tail fibers,
and the strand of
nucleic acid in the
image at right.
Activity A: Get the Gizmo ready:
Lytic cycle If necessary, click Reset ( ).
This study source was downloaded by 100000830034489 from CourseHero.com on 09-11-2021 15:46:16 GMT -05:00
2019
https://www.coursehero.com/file/61261458/GIZMO-Virus-Lytic-Cycle-Student-Exploration-Sheet-docx/
, Introduction: Unlike living organisms, viruses cannot reproduce on their own. Instead, viruses
infect host cells, taking over the cell’s machinery to produce more viruses. This process is
called the lytic cycle.
Question: What are the steps of the lytic cycle?
1. Observe: Use the navigation arrows on the DESCRIPTION tab to read about the stages
of the lytic cycle. Using your own words, summarize each step of the cycle.
Step Summary
A lytiv bacteriophage viurs attaches itself to a bacteria cell. The virus is a
very simple structure, composed if a protein capsid, nucleic acid, and a
1 tail section.
↓
The virus injects its nucleic acid into the cell. The nucleic acid uses the cell's ribosomes to make virus proteins. The
2
m
er as
↓
co
eH w
The virus capsid and tail, now useless, detach from th cell and disintegrate. Inside the cell, the viral nucleic acid ta
o.
rs e 3
ou urc
↓
o
The virus proteins and nucleic acid assemble into new viruses.
aC s
vi y re
4
↓
ed d
ar stu
Special proteins produced by the viral nucleic acid cause the host bacterial cell to lyse (burst) destroying the cell in
5
is
Th
(Activity A continued on next page)
sh
This study source was downloaded by 100000830034489 from CourseHero.com on 09-11-2021 15:46:16 GMT -05:00
2019
https://www.coursehero.com/file/61261458/GIZMO-Virus-Lytic-Cycle-Student-Exploration-Sheet-docx/
Student Exploration Sheet
Name: Samuel Rojas Date: 4/13/2020
Student Exploration: Virus Lytic Cycle
Vocabulary: bacteriophage, capsid, host cell, lyse, lytic cycle, virus
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
1. A computer virus is a program that can copy itself and infect a computer without the
permission of the owner. How do you think a computer virus compares to a real virus?
A computer Virus and a real virus are very similar because theey both duplicate and infect the
host in order to harm the host.
m
er as
co
eH w
2. Have you ever been infected with a virus, such as the cold virus or flu virus? Yes
o.
rs e
ou urc
3. If so, how did the virus affect you? I felt like i didn't have energy, and I was coughing and
Sneezing all the time, most likely because my body was fighting against the virus.
o
aC s
Gizmo Warm-up
vi y re
A virus is a microscopic particle that can infect a cell.
Viruses are primarily composed of a protein coat,
called a capsid, and nucleic acid. In the Virus Lytic
Cycle Gizmo™, you will learn how a virus infects a
ed d
cell and uses the cell to produce more viruses.
ar stu
1. Viruses are extremely small. A typical virus is
about 100 times smaller than a single cell, such
as a bacterium. Label the virus and a bacterial
is
cell in the image at right.
Th
2. Bacteriophages are
viruses that infect
bacteria. Based on the
sh
diagram at left, label
the head, tail, tail fibers,
and the strand of
nucleic acid in the
image at right.
Activity A: Get the Gizmo ready:
Lytic cycle If necessary, click Reset ( ).
This study source was downloaded by 100000830034489 from CourseHero.com on 09-11-2021 15:46:16 GMT -05:00
2019
https://www.coursehero.com/file/61261458/GIZMO-Virus-Lytic-Cycle-Student-Exploration-Sheet-docx/
, Introduction: Unlike living organisms, viruses cannot reproduce on their own. Instead, viruses
infect host cells, taking over the cell’s machinery to produce more viruses. This process is
called the lytic cycle.
Question: What are the steps of the lytic cycle?
1. Observe: Use the navigation arrows on the DESCRIPTION tab to read about the stages
of the lytic cycle. Using your own words, summarize each step of the cycle.
Step Summary
A lytiv bacteriophage viurs attaches itself to a bacteria cell. The virus is a
very simple structure, composed if a protein capsid, nucleic acid, and a
1 tail section.
↓
The virus injects its nucleic acid into the cell. The nucleic acid uses the cell's ribosomes to make virus proteins. The
2
m
er as
↓
co
eH w
The virus capsid and tail, now useless, detach from th cell and disintegrate. Inside the cell, the viral nucleic acid ta
o.
rs e 3
ou urc
↓
o
The virus proteins and nucleic acid assemble into new viruses.
aC s
vi y re
4
↓
ed d
ar stu
Special proteins produced by the viral nucleic acid cause the host bacterial cell to lyse (burst) destroying the cell in
5
is
Th
(Activity A continued on next page)
sh
This study source was downloaded by 100000830034489 from CourseHero.com on 09-11-2021 15:46:16 GMT -05:00
2019
https://www.coursehero.com/file/61261458/GIZMO-Virus-Lytic-Cycle-Student-Exploration-Sheet-docx/
