BIO 152 FINAL EXAM WITH CORRECT
ANSWERS 2025
Define atrium correct answers >> the chamber or cavity that
receives blood returning to the heart.
Define ventricle correct answers >> A hollow part or cavity in
an organ. Pushes blood out of the heart
Define systemic correct answers >> whole body; systemic
circuit is defined as blood vessels that move blood to the tissues
all around the body and back to the heart again
Define pulmonary correct answers >> relating to the lungs;
pulmonary circuit is defined as blood vessels that move blood to
the lungs and back to the heart again
Define 1-circuit system correct answers >> the blood moves
through the entire system and back to its starting point through
one loop; passes through heart 1 time.
Define 2-circuit system correct answers >> blood must pass
through the heart two times to return to its starting point
Define anatomical right vs anatomical left correct answers >>
based on the animal's left and right side, not yours
,Identify the advantages and disadvantages of the open
circulatory system, and identify several animals with this design.
correct answers >> Advantages:
- uses less energy
- pressure changes do not create vulnerabilities
- body temperature control is better
- it creates less urgency
Disadvantages:
- lower flow
- less control of flow
Ex) Insects, crayfish, clams, and oysters
(larger less active animals)
Identify the advantages and disadvantages of the closed
circulatory system, and identify several animals with this design.
correct answers >> Advantages:
- higher flow
- better control of flow
Disadvantages:
- requires more energy
Ex) fish, amphibians, birds, and mammals
Some larger, more active animals such as the vertebrates
, Describe in step-by-step detail the movement of blood through
the circulatory systems of a fish correct answers >> Fish's
circulatory system consist of 1 circuit. Deoxygenated blood starts
at the heart and is pumped to the gills where it is oxygenated.
Once oxygenated, the blood continues on to the rest of the body
and tissues, delivering oxygen. The blood passes through the
systemic vascular beds and then returns to the heart as
deoxygenated blood.
Describe in step-by-step detail the movement of blood through
the circulatory systems of an amphibian correct answers >>
An amphibian's circulatory system consists of a 2-ciruit system.
Deoxygenated blood starts in the heart. Pressure is built up to
pump the blood to the lungs to become oxygenated. Once
oxygenated, the blood return to the heart, where it builds up
pressure again to be able to pump blood to the tissues in the
body. After pumping blood through the body and providing its
cells with oxygen, the deoxygenated blood returns back to the
heart.
Describe in step-by-step detail the movement of blood through
the circulatory systems of a mammal/bird correct answers >>
Avian and mammalian circulatory systems consist of a 2-circuit
system. Deoxygenated blood is pumped from the right ventricle
of the heart to the lungs to become oxygenated. Once
oxygenated, the blood returns to the heart via the left atrium. It
flows into the left ventricle (the strongest muscle of the heart),
and the blood is pumped all throughout the body, delivering
oxygen to tissues and cells. After this, the blood is no longer
oxygenated and it returns to the heart through the right atrium.
ANSWERS 2025
Define atrium correct answers >> the chamber or cavity that
receives blood returning to the heart.
Define ventricle correct answers >> A hollow part or cavity in
an organ. Pushes blood out of the heart
Define systemic correct answers >> whole body; systemic
circuit is defined as blood vessels that move blood to the tissues
all around the body and back to the heart again
Define pulmonary correct answers >> relating to the lungs;
pulmonary circuit is defined as blood vessels that move blood to
the lungs and back to the heart again
Define 1-circuit system correct answers >> the blood moves
through the entire system and back to its starting point through
one loop; passes through heart 1 time.
Define 2-circuit system correct answers >> blood must pass
through the heart two times to return to its starting point
Define anatomical right vs anatomical left correct answers >>
based on the animal's left and right side, not yours
,Identify the advantages and disadvantages of the open
circulatory system, and identify several animals with this design.
correct answers >> Advantages:
- uses less energy
- pressure changes do not create vulnerabilities
- body temperature control is better
- it creates less urgency
Disadvantages:
- lower flow
- less control of flow
Ex) Insects, crayfish, clams, and oysters
(larger less active animals)
Identify the advantages and disadvantages of the closed
circulatory system, and identify several animals with this design.
correct answers >> Advantages:
- higher flow
- better control of flow
Disadvantages:
- requires more energy
Ex) fish, amphibians, birds, and mammals
Some larger, more active animals such as the vertebrates
, Describe in step-by-step detail the movement of blood through
the circulatory systems of a fish correct answers >> Fish's
circulatory system consist of 1 circuit. Deoxygenated blood starts
at the heart and is pumped to the gills where it is oxygenated.
Once oxygenated, the blood continues on to the rest of the body
and tissues, delivering oxygen. The blood passes through the
systemic vascular beds and then returns to the heart as
deoxygenated blood.
Describe in step-by-step detail the movement of blood through
the circulatory systems of an amphibian correct answers >>
An amphibian's circulatory system consists of a 2-ciruit system.
Deoxygenated blood starts in the heart. Pressure is built up to
pump the blood to the lungs to become oxygenated. Once
oxygenated, the blood return to the heart, where it builds up
pressure again to be able to pump blood to the tissues in the
body. After pumping blood through the body and providing its
cells with oxygen, the deoxygenated blood returns back to the
heart.
Describe in step-by-step detail the movement of blood through
the circulatory systems of a mammal/bird correct answers >>
Avian and mammalian circulatory systems consist of a 2-circuit
system. Deoxygenated blood is pumped from the right ventricle
of the heart to the lungs to become oxygenated. Once
oxygenated, the blood returns to the heart via the left atrium. It
flows into the left ventricle (the strongest muscle of the heart),
and the blood is pumped all throughout the body, delivering
oxygen to tissues and cells. After this, the blood is no longer
oxygenated and it returns to the heart through the right atrium.
