BIO 106 WSU Exam 4
1. Three hours Single celled organisms can ex-
change gases with the environ-
ment solely by diffusion across
the cell membrane. In multicellu-
lar organisms, this is not efficient
enough to sustain life. If a sub-
stance takes 1 second to diffuse
100 um, how long will it take to
diffuse 1 cm?
2. By moving fluid between each cell's immediate How does a circulatory system
surroundings and the rest of the body solve the problem of diffusion
time who lack a simple body plan?
Note: Such a system makes it possible for all
exchange to occur over very short distances
3. 1) Circulatory fluid Name the three components of a
2) A set of interconnecting vessels circulatory system.
3) Muscular pump (the heart)
4. Hemolymph What is circulatory fluid that acts
as the interstitial fluid as well?
5. A closed circulatory system has circulatory fluid In what ways is a closed circulato-
(blood) that is distinct from the interstitial flu- ry system different from an open
id while an open circulatory system's interstitial one?
fluid is the same as the circulatory fluid (he-
molymph).
6. Lower hydrostatic pressures allow them to use What is the evolutionary benefit
less energy than closed systems for having an open circulatory sys-
tem?
, BIO 106 WSU Exam 4
7. Regulation over the distribution of blood to What is the evolutionary benefit
different organs; blood pressure that is high for having a closed circulatory sys-
enough to enable the effective delivery of O2 and tem?
nutrients in larger and more active animals
8. Arteries _____________ carry blood away
from the heart to organs through-
out the body.
9. Veins ______________ carry blood
back to the heart from the body.
10. Capillaries _________________ allows gas
exchange between the blood and
interstitial fluid around the tissue
cells.
11. Atrium Which chamber of the heart re-
ceives blood from the veins and
transfers blood to a ventricle?
12. Ventricle Which chamber of the heart
pumps blood out of the heart?
Note:
Right ventricle pumps blood OUT of the heart
and into the lungs
Left ventricle pumps blood OUT of the heart and
to the rest of the body
13. From the right ventricle, blood travels to the From the right ventricle, blood
lungs via the pulmonary arteries. As the blood travels to the lungs via the
flows through the capillary beds in the lungs it ____________________. As the
gains O2 gas and unloads CO2 gas which is then blood flows through the cap-
, BIO 106 WSU Exam 4
exhaled. From here, the blood returns to the left illary beds in the lungs it
atrium (chamber of the heart). Next it passes into gains ____ gas and unloads
the left ventricle (chamber of the heart). From ____ gas which is then exhaled.
here, the blood is pumped to the systemic sys- From here, the blood returns
tem which includes capillary beds in the head to the _____________ (cham-
and arms and also capillary beds in the abdomi- ber of the heart). Next it pass-
nal organs and legs. As the blood passes through es into the ____________ (cham-
these capillary beds it becomes deoxygenated. ber of the heart). From here,
From here it returns to the right atrium (chamber the blood is pumped to the
of the heart) where the circuit begins again. systemic system which includes
capillary beds in the head and
arms and also capillary beds
in the abdominal ________ and
______. As the blood pass-
es through these capillary beds
it becomes _________________.
From here it returns to the
_________________ (chamber
of the heart) where the circuit be-
gins again.
14. Capillary Which type of blood vessel has
thin walls to accommodate the
exchange of substances between
the blood and interstitial fluid?
15. Artery Which type of blood vessel has
very thick walls to accommodate
the high pressure of blood leaving
the heart?
16. Vein
1. Three hours Single celled organisms can ex-
change gases with the environ-
ment solely by diffusion across
the cell membrane. In multicellu-
lar organisms, this is not efficient
enough to sustain life. If a sub-
stance takes 1 second to diffuse
100 um, how long will it take to
diffuse 1 cm?
2. By moving fluid between each cell's immediate How does a circulatory system
surroundings and the rest of the body solve the problem of diffusion
time who lack a simple body plan?
Note: Such a system makes it possible for all
exchange to occur over very short distances
3. 1) Circulatory fluid Name the three components of a
2) A set of interconnecting vessels circulatory system.
3) Muscular pump (the heart)
4. Hemolymph What is circulatory fluid that acts
as the interstitial fluid as well?
5. A closed circulatory system has circulatory fluid In what ways is a closed circulato-
(blood) that is distinct from the interstitial flu- ry system different from an open
id while an open circulatory system's interstitial one?
fluid is the same as the circulatory fluid (he-
molymph).
6. Lower hydrostatic pressures allow them to use What is the evolutionary benefit
less energy than closed systems for having an open circulatory sys-
tem?
, BIO 106 WSU Exam 4
7. Regulation over the distribution of blood to What is the evolutionary benefit
different organs; blood pressure that is high for having a closed circulatory sys-
enough to enable the effective delivery of O2 and tem?
nutrients in larger and more active animals
8. Arteries _____________ carry blood away
from the heart to organs through-
out the body.
9. Veins ______________ carry blood
back to the heart from the body.
10. Capillaries _________________ allows gas
exchange between the blood and
interstitial fluid around the tissue
cells.
11. Atrium Which chamber of the heart re-
ceives blood from the veins and
transfers blood to a ventricle?
12. Ventricle Which chamber of the heart
pumps blood out of the heart?
Note:
Right ventricle pumps blood OUT of the heart
and into the lungs
Left ventricle pumps blood OUT of the heart and
to the rest of the body
13. From the right ventricle, blood travels to the From the right ventricle, blood
lungs via the pulmonary arteries. As the blood travels to the lungs via the
flows through the capillary beds in the lungs it ____________________. As the
gains O2 gas and unloads CO2 gas which is then blood flows through the cap-
, BIO 106 WSU Exam 4
exhaled. From here, the blood returns to the left illary beds in the lungs it
atrium (chamber of the heart). Next it passes into gains ____ gas and unloads
the left ventricle (chamber of the heart). From ____ gas which is then exhaled.
here, the blood is pumped to the systemic sys- From here, the blood returns
tem which includes capillary beds in the head to the _____________ (cham-
and arms and also capillary beds in the abdomi- ber of the heart). Next it pass-
nal organs and legs. As the blood passes through es into the ____________ (cham-
these capillary beds it becomes deoxygenated. ber of the heart). From here,
From here it returns to the right atrium (chamber the blood is pumped to the
of the heart) where the circuit begins again. systemic system which includes
capillary beds in the head and
arms and also capillary beds
in the abdominal ________ and
______. As the blood pass-
es through these capillary beds
it becomes _________________.
From here it returns to the
_________________ (chamber
of the heart) where the circuit be-
gins again.
14. Capillary Which type of blood vessel has
thin walls to accommodate the
exchange of substances between
the blood and interstitial fluid?
15. Artery Which type of blood vessel has
very thick walls to accommodate
the high pressure of blood leaving
the heart?
16. Vein
