Bio 1500 Mizzou Schul TEST 5 With Complete
Solutions Latest Update
Recall the overview of how viruses reproduce using host cells - ANSWER -Attaches to
'receptors' on cell surface
-Penetrates cell and releases its genome into cell
-Integrate into cell genome (HIV, retrovirus) or used directly by ribosome (corona)
-Cell translates virus genome and assembles new virus particles
-After release: infects new cells (hosts)
Recall the diversity of viruses in the "Corona Virus Family" including the diversity of
diseases that they cause - ANSWER RNA-virus (positive sense): direct translation
Incubation period - ANSWER infection to symptoms
Infectious Period - ANSWER time during which the host can infect another host
Asymptomatic Cases - ANSWER -may cause 80% of spread
-infection with no symptoms
Explain again why number of cases decline during an epidemic-What causes a
decrease? -ANSWER-lack of targets
-immune -> previous infection or vaccinations
-reduced opportunity to infect
Best explanation for new viruses on humans- ANSWER virus mutated so it can use
humans as host
, Describe the sequence of events that would lead to the 'jump' of a virus from an animal
host to humans- ANSWER
Know the roles of the mammalian respiratory system - ANSWER to provide the cells with
oxygen which they need to conduct the process of respiration and remove CO2 out of
the body
List the sequence of events involved in mammalian respiration- ANSWER 1. Taking in air
from the environment
2. Diffusion of air to red blood cells in lungs
3. Oxygen is attached with blood pigments present inside RBC
4. RBCs are transported all over the body and oxygen is released from RBCs
5. Oxygen is utilized in CR and as a result of metabolic reactions CO2 is diffused inside
the blood
6. CO2 gets dissolved in the blood
7. Blood transports CO2 and RBCs without oxygen to lungs
8. Air is exhaled out and CO2 is diffused into air
gas exchange - ANSWER movement of O2 from air into blood and of CO2 from blood into
air
roken
tidal volume - ANSWER amount of air that moves in and out of the lungs per breath when
breathing normally
roken
vital capacity - ANSWER amount of air moving in and out of lungs when exercising
vigorously
roken
alveoli - ANSWER amount of air moving in and out of lungs when exercising vigorously
respiration ANSWER movement of air between the external environment and the
respiratory surface
Solutions Latest Update
Recall the overview of how viruses reproduce using host cells - ANSWER -Attaches to
'receptors' on cell surface
-Penetrates cell and releases its genome into cell
-Integrate into cell genome (HIV, retrovirus) or used directly by ribosome (corona)
-Cell translates virus genome and assembles new virus particles
-After release: infects new cells (hosts)
Recall the diversity of viruses in the "Corona Virus Family" including the diversity of
diseases that they cause - ANSWER RNA-virus (positive sense): direct translation
Incubation period - ANSWER infection to symptoms
Infectious Period - ANSWER time during which the host can infect another host
Asymptomatic Cases - ANSWER -may cause 80% of spread
-infection with no symptoms
Explain again why number of cases decline during an epidemic-What causes a
decrease? -ANSWER-lack of targets
-immune -> previous infection or vaccinations
-reduced opportunity to infect
Best explanation for new viruses on humans- ANSWER virus mutated so it can use
humans as host
, Describe the sequence of events that would lead to the 'jump' of a virus from an animal
host to humans- ANSWER
Know the roles of the mammalian respiratory system - ANSWER to provide the cells with
oxygen which they need to conduct the process of respiration and remove CO2 out of
the body
List the sequence of events involved in mammalian respiration- ANSWER 1. Taking in air
from the environment
2. Diffusion of air to red blood cells in lungs
3. Oxygen is attached with blood pigments present inside RBC
4. RBCs are transported all over the body and oxygen is released from RBCs
5. Oxygen is utilized in CR and as a result of metabolic reactions CO2 is diffused inside
the blood
6. CO2 gets dissolved in the blood
7. Blood transports CO2 and RBCs without oxygen to lungs
8. Air is exhaled out and CO2 is diffused into air
gas exchange - ANSWER movement of O2 from air into blood and of CO2 from blood into
air
roken
tidal volume - ANSWER amount of air that moves in and out of the lungs per breath when
breathing normally
roken
vital capacity - ANSWER amount of air moving in and out of lungs when exercising
vigorously
roken
alveoli - ANSWER amount of air moving in and out of lungs when exercising vigorously
respiration ANSWER movement of air between the external environment and the
respiratory surface
