WSU BIO 106 FINAL ACTUAL TEST
QUESTIONS WITH COMPLETE SOLUTION
PREMIUM REVIEW CONTENT
●● What are the major types of blood vessels
Answer: Arteries: carry blood from the heart to organs throughout the
body
Capillaries: microscopic vessels with very thin, porous walls
Veins: the vessels that carry blood back to the heart
●● What adaptations allow an animal to use diffusion across its skin as
the only mechanism for gas exchange
Answer: Flat shaped body: adaptation to increase surface area relative to
volume
●● What is the relationship between the surface area-to-volume ratio
and efficiency of exchange across a surface
Answer: Surface are must be large enough to allow O2/CO2 exchange
for entire body
, The higher the surface area and the lower the volume, the greater rate of
diffusion
●● Not all animals use a circulatory system to transport oxygen and
remove carbon dioxide. How do insects and some spiders accomplish
gas exchange
Answer: Tracheal system, gas exchange not tied to hemolymph or blood
Structure: Spiracles- let air into tube system, Trachea- tubes leading
from spiracle to tissue
●● In a two-chambered heart, where does the blood go after it leaves the
atrium? (Give the entire pathway ending back in the atrium). What
happens as it passes through the capillary beds in the tissues and gills
Answer: To the ventricle towards capillary bed
(ventricle--->Gills ---> Body Capallaries---> Veins---> Atrium)
●● in a four-chambered heart, where does the blood go after it leaves the
right atrium? (Give the entire pathway ending back in the right atrium).
What happens as it passes through the capillary beds in the systemic and
pulmonary circuits
Answer: Right atrium- right ventricle- artery to lungs- capillary bed in
lungs (picks up load of O2 releases CO2 waste)- vein back to heart- left
atrium- left ventricle- artery to body tissues- capillary beds in body
QUESTIONS WITH COMPLETE SOLUTION
PREMIUM REVIEW CONTENT
●● What are the major types of blood vessels
Answer: Arteries: carry blood from the heart to organs throughout the
body
Capillaries: microscopic vessels with very thin, porous walls
Veins: the vessels that carry blood back to the heart
●● What adaptations allow an animal to use diffusion across its skin as
the only mechanism for gas exchange
Answer: Flat shaped body: adaptation to increase surface area relative to
volume
●● What is the relationship between the surface area-to-volume ratio
and efficiency of exchange across a surface
Answer: Surface are must be large enough to allow O2/CO2 exchange
for entire body
, The higher the surface area and the lower the volume, the greater rate of
diffusion
●● Not all animals use a circulatory system to transport oxygen and
remove carbon dioxide. How do insects and some spiders accomplish
gas exchange
Answer: Tracheal system, gas exchange not tied to hemolymph or blood
Structure: Spiracles- let air into tube system, Trachea- tubes leading
from spiracle to tissue
●● In a two-chambered heart, where does the blood go after it leaves the
atrium? (Give the entire pathway ending back in the atrium). What
happens as it passes through the capillary beds in the tissues and gills
Answer: To the ventricle towards capillary bed
(ventricle--->Gills ---> Body Capallaries---> Veins---> Atrium)
●● in a four-chambered heart, where does the blood go after it leaves the
right atrium? (Give the entire pathway ending back in the right atrium).
What happens as it passes through the capillary beds in the systemic and
pulmonary circuits
Answer: Right atrium- right ventricle- artery to lungs- capillary bed in
lungs (picks up load of O2 releases CO2 waste)- vein back to heart- left
atrium- left ventricle- artery to body tissues- capillary beds in body
