BIO 1500 FINAL EXAM MIZZOU 1 (ACTUAL 2025) Q
d d d d d d d d
UESTIONS WITH VERIFIED CORRECT ANSWERS. d d d d
Describe the potential outcomes of light striking an object -
d d d d d d d d d
<<<Answers>>>>refraction, absorption, transmitted d d
Describe the importance of gated proteins -
d d d d d d
<<<Answers>>>>sometimes it allows molecules to pass throug d d d d d d
h
Distinguish between selective and gated proteins -
d d d d d d
<<<Answers>>>>selective proteins only let certain ions in, gate d d d d d d d
d is a time variation
d d d d
• Identify at which level a particular biological process occurs
d d d d d d d d
-
<<<Answers>>>>1. molecular: involving structure or behavior
d d d d d d d
of molecules
d
2. cellular: processes performed by cells
d d d d
3. organismal: physiology of plants, animals, fungi, etc. (how d
d d d d d d d d
o they work?)
d d
4. ecological: interactions between species or between an o
d d d d d d d
rganism and the environment d d d
5. evolutionary: topics related to change over time d d d d d d
• Recall the elevation of Mt. Everest - <<<Answers>>>>8850
d d d d d d d
,BIO 1500 FINAL EXAM MIZZOU 1 (ACTUAL 2025) Q
d d d d d d d d
UESTIONS WITH VERIFIED CORRECT ANSWERS. d d d d
• Recall the reason for 'death- d d d d
zone' and where a death zone occurs -
d d d d d d d
<<<Answers>>>>there is not enough oxygen in the atmosphe
d d d d d d d d
re, 8000 m
d d
• Recall the migration path of Bar Headed Geese and which fe
d d d d d d d d d d
at makes it remarkable - <<<Answers>>>>-
d d d d d
Migration pattern- across the Himalayas NOT around it-
d d d d d d d
Fly 5,800- 6,400m (19-
d d d
21,000ft) they fly at an altitude that humans would need suppl
d d d d d d d d d d
emental oxygen to even move at! d d d d d
• Know the functions of the mammalian respiratory system -
d d d d d d d d
<<<Answers>>>>to provide O2 to our cells d d d d d
• List the steps in mammalian respiration -
d d d d d d
<<<Answers>>>>1. inhalation: brings air inside d d d d
2. in lungs: O2 diffuses to red blood cells (RBC)
d d d d d d d d
3. O2 bound to hemoglobin (Hb) inside RBC
d d d d d d
4. In body: O2 released from Hb - diffusion of O2 to cells
d d d d d d d d d d d
5. O2 used in CR - CO2 diffuses to blood
d d d d d d d d
6. CO2 dissolved in blood (NOT bound to Hb)
d d d d d d d
7. Blood transports CO2 (and RBCs w/o O2) to lungs
d d d d d d d d
8. CO2 diffusion into air --> exhalation back to air
d d d d d d d d
,BIO 1500 FINAL EXAM MIZZOU 1 (ACTUAL 2025) Q
d d d d d d d d
UESTIONS WITH VERIFIED CORRECT ANSWERS. d d d d
• Know the definitions of: gas exchange, tidal volume, vital c
d d d d d d d d d
apacity, alveoli, ventilation -
d d d
<<<Answers>>>>gas exchange: movement of O2 from air i
d d d d d d d d
nto blood; and CO2 from blood into air, move by diffusion
d d d d d d d d d d
tidal volume: Amount of air that moves in and out of the lungs dur
d d d d d d d d d d d d d
ing a normal breath
d d d
vital capacity: the maximum amount of air that can be exhaled aft
d d d d d d d d d d d
er a maximum inhalation
d d d
alveoli: where lungs and blood exchange gases (tiny sacs)
d d d d d d d d
Ventilation: Exchange of air between the lungs and the environm d d d d d d d d d
ent, so O2 can be exchange for CO2 in alveoli
d d d d d d d d d
• Describe how the structure of our respiratory system facilitates
d d d d d d d d d
gas exchange - <<<Answers>>>>-
d d d
Alveoli: close contact of air and blood-
d d d d d d
separated by thickness of 2 cells- d d d d d
Diffusion moves O2 and CO2 from high to low concentration-
d d d d d d d d d d
O2 binds to hemoglobin in RBC--
d d d d d d
removes it from solution, keeps O2 concentration low---
d d d d d d d
and diffusion going fast
d d d
trachea, bronchi tubes to bronchioles branches to alveolar ducts
d d d d d d d d d
to alveoli sacs-
d d
the sacs have capillary network where gas exchange happens
d d d d d d d d d
• Explain what residual lung volume refers to and why it exists -
d d d d d d d d d d d
<<<Answers>>>>Residual volume is the volume that is never
d d d d d d d d d
exchanged. It is the amount of air left in the lungs d d d d d d d d d d
, BIO 1500 FINAL EXAM MIZZOU 1 (ACTUAL 2025) Q
d d d d d d d d
UESTIONS WITH VERIFIED CORRECT ANSWERS. d d d d
after maximum exhalation. Residual volume exists because if not
d d d d d d d d
, our lungs would collapse.
d d d d
Which of the following is a feature of the human respiratory syst
d d d d d d d d d d d
em that arises from having a large residual lung volume? -
d d d d d d d d d d
<<<Answers>>>>The PO2 of the air in the lungs is lower than t d d d d d d d d d d d
he PO2 of the atmosphere.
d d d d
The residual lung volume is the volume of lung capacity that we
d d d d d d d d d d d
dnever exchange (exhale). This volume represents the minimal
d d d d d d d d
volume necessary to maintain inflated open alveoli for continue
d d d d d d d d
d respiratory function. As such some volume of our lung capacit
d d d d d d d d d d
y is filled with CO2 and other gases that are not at atmospheric l
d d d d d d d d d d d d d
evels, thus our PO2 can never be equal to that of the outside air (i
d d d d d d d d d d d d d d
t must be lower).
d d d
Compare the atmosphere we breathe (at sea level) and the atmosp
d d d d d d d d d d
here in our lungs, and explain the reason for the difference -
d d d d d d d d d d d
<<<Answers>>>>Atmosphere:-pO2: 21 kPa
d d d
-pCO2: 0.4 kPa d d
Lung:-pO2: 13 kPa d d
-pCO2: 5.0 kPa d d
the difference in the two is because lung atmosphere depends on
d d d d d d d d d d d
volume of gas exchanged d d d
d d d d d d d d
UESTIONS WITH VERIFIED CORRECT ANSWERS. d d d d
Describe the potential outcomes of light striking an object -
d d d d d d d d d
<<<Answers>>>>refraction, absorption, transmitted d d
Describe the importance of gated proteins -
d d d d d d
<<<Answers>>>>sometimes it allows molecules to pass throug d d d d d d
h
Distinguish between selective and gated proteins -
d d d d d d
<<<Answers>>>>selective proteins only let certain ions in, gate d d d d d d d
d is a time variation
d d d d
• Identify at which level a particular biological process occurs
d d d d d d d d
-
<<<Answers>>>>1. molecular: involving structure or behavior
d d d d d d d
of molecules
d
2. cellular: processes performed by cells
d d d d
3. organismal: physiology of plants, animals, fungi, etc. (how d
d d d d d d d d
o they work?)
d d
4. ecological: interactions between species or between an o
d d d d d d d
rganism and the environment d d d
5. evolutionary: topics related to change over time d d d d d d
• Recall the elevation of Mt. Everest - <<<Answers>>>>8850
d d d d d d d
,BIO 1500 FINAL EXAM MIZZOU 1 (ACTUAL 2025) Q
d d d d d d d d
UESTIONS WITH VERIFIED CORRECT ANSWERS. d d d d
• Recall the reason for 'death- d d d d
zone' and where a death zone occurs -
d d d d d d d
<<<Answers>>>>there is not enough oxygen in the atmosphe
d d d d d d d d
re, 8000 m
d d
• Recall the migration path of Bar Headed Geese and which fe
d d d d d d d d d d
at makes it remarkable - <<<Answers>>>>-
d d d d d
Migration pattern- across the Himalayas NOT around it-
d d d d d d d
Fly 5,800- 6,400m (19-
d d d
21,000ft) they fly at an altitude that humans would need suppl
d d d d d d d d d d
emental oxygen to even move at! d d d d d
• Know the functions of the mammalian respiratory system -
d d d d d d d d
<<<Answers>>>>to provide O2 to our cells d d d d d
• List the steps in mammalian respiration -
d d d d d d
<<<Answers>>>>1. inhalation: brings air inside d d d d
2. in lungs: O2 diffuses to red blood cells (RBC)
d d d d d d d d
3. O2 bound to hemoglobin (Hb) inside RBC
d d d d d d
4. In body: O2 released from Hb - diffusion of O2 to cells
d d d d d d d d d d d
5. O2 used in CR - CO2 diffuses to blood
d d d d d d d d
6. CO2 dissolved in blood (NOT bound to Hb)
d d d d d d d
7. Blood transports CO2 (and RBCs w/o O2) to lungs
d d d d d d d d
8. CO2 diffusion into air --> exhalation back to air
d d d d d d d d
,BIO 1500 FINAL EXAM MIZZOU 1 (ACTUAL 2025) Q
d d d d d d d d
UESTIONS WITH VERIFIED CORRECT ANSWERS. d d d d
• Know the definitions of: gas exchange, tidal volume, vital c
d d d d d d d d d
apacity, alveoli, ventilation -
d d d
<<<Answers>>>>gas exchange: movement of O2 from air i
d d d d d d d d
nto blood; and CO2 from blood into air, move by diffusion
d d d d d d d d d d
tidal volume: Amount of air that moves in and out of the lungs dur
d d d d d d d d d d d d d
ing a normal breath
d d d
vital capacity: the maximum amount of air that can be exhaled aft
d d d d d d d d d d d
er a maximum inhalation
d d d
alveoli: where lungs and blood exchange gases (tiny sacs)
d d d d d d d d
Ventilation: Exchange of air between the lungs and the environm d d d d d d d d d
ent, so O2 can be exchange for CO2 in alveoli
d d d d d d d d d
• Describe how the structure of our respiratory system facilitates
d d d d d d d d d
gas exchange - <<<Answers>>>>-
d d d
Alveoli: close contact of air and blood-
d d d d d d
separated by thickness of 2 cells- d d d d d
Diffusion moves O2 and CO2 from high to low concentration-
d d d d d d d d d d
O2 binds to hemoglobin in RBC--
d d d d d d
removes it from solution, keeps O2 concentration low---
d d d d d d d
and diffusion going fast
d d d
trachea, bronchi tubes to bronchioles branches to alveolar ducts
d d d d d d d d d
to alveoli sacs-
d d
the sacs have capillary network where gas exchange happens
d d d d d d d d d
• Explain what residual lung volume refers to and why it exists -
d d d d d d d d d d d
<<<Answers>>>>Residual volume is the volume that is never
d d d d d d d d d
exchanged. It is the amount of air left in the lungs d d d d d d d d d d
, BIO 1500 FINAL EXAM MIZZOU 1 (ACTUAL 2025) Q
d d d d d d d d
UESTIONS WITH VERIFIED CORRECT ANSWERS. d d d d
after maximum exhalation. Residual volume exists because if not
d d d d d d d d
, our lungs would collapse.
d d d d
Which of the following is a feature of the human respiratory syst
d d d d d d d d d d d
em that arises from having a large residual lung volume? -
d d d d d d d d d d
<<<Answers>>>>The PO2 of the air in the lungs is lower than t d d d d d d d d d d d
he PO2 of the atmosphere.
d d d d
The residual lung volume is the volume of lung capacity that we
d d d d d d d d d d d
dnever exchange (exhale). This volume represents the minimal
d d d d d d d d
volume necessary to maintain inflated open alveoli for continue
d d d d d d d d
d respiratory function. As such some volume of our lung capacit
d d d d d d d d d d
y is filled with CO2 and other gases that are not at atmospheric l
d d d d d d d d d d d d d
evels, thus our PO2 can never be equal to that of the outside air (i
d d d d d d d d d d d d d d
t must be lower).
d d d
Compare the atmosphere we breathe (at sea level) and the atmosp
d d d d d d d d d d
here in our lungs, and explain the reason for the difference -
d d d d d d d d d d d
<<<Answers>>>>Atmosphere:-pO2: 21 kPa
d d d
-pCO2: 0.4 kPa d d
Lung:-pO2: 13 kPa d d
-pCO2: 5.0 kPa d d
the difference in the two is because lung atmosphere depends on
d d d d d d d d d d d
volume of gas exchanged d d d
