BIO 353 Final Exam Review Questions And Answers Rated A+ 2024/2025 Updates
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BIO 353
Institution
BIO 353
BIO 353 Final Exam Review Questions And Answers Rated A+ 2024/2025 Updates
The rate of O2 uptake by the breathing organ depends on the
volume flow of respiratory medium per unit time and the amount of O2 removed from each unit volume
Oxygen enters the mitochondria
by diffusion, at a rate that i...
bio 353 final exam review questions and answers ra
the rate of o2 uptake by the breathing organ depen
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BIO 353 Final Exam Review Questions And Answers
The rate of O2 uptake by the breathing organ depends on the
volume flow of respiratory medium per unit time and the amount of O2 removed from each unit
volume
Oxygen enters the mitochondria
by diffusion, at a rate that is dependent on the difference in O2 partial pressure between the blood
capillaries and the mitochondria
Bird respiration is characterized by _______ air flow and _______ gas exchange.
unidirectional; crosscurrent
Which statement regarding the diffusion of materials between gas mixtures and aqueous solutions
is false?
diffusion can be predicted by using concentrations
In the diffusion equation, J=K((P1-P2)/X) when X increases
J decreases
Which statement about gases dissolved in aqueous solutions is true?
Different gases have different solubilities
Which statement about air-breathing fish is false?
Most air-breathing fish have lost gill function
The entrance to the gas exchange system of insects is through
spiracles
During high speed swimming, many high metabolism fish rely on a method of ventilation called
ram ventilation
The principal process(es) by which animals use convection to transport gases are
ventilation and the pumping of blood
What is the correct sequence of blood movement through the human heart?
Vena cavae → right atrium → right ventricle → pulmonary artery → pulmonary vein → left atrium
→ left ventricle → aorta
Many lobsters and decapod crustaceans have _____ hearts
neurogenic
The P wave of the EKG is produced by the
, depolarization of the atria
Halving the radius of a vessel _______ the resistance to flow through the vessel by a factor of
_______.
increases; 16
Which characteristic is typical of fish cardiovascular systems?
Cardiac outputs are lower than those of similar-sized animals
The _______ circulatory system of squids and octopuses consist of two _______.
closed; branchial hearts and one systemic heart
In the human heart, oxygenated blood is carried from the lungs to the heart by the __________
pulmonary veins
Cardiac output is directly proportional to ____________
both heart rate and stroke volume
The hearts of vertebrates are myogenic, meaning that ___________
the impulse to contract originates within the heart muscle tissue itself
Which statement about the insect circulatory system is true?
Insects have an open circulatory system and a tracheal system for delivering O2
The exposure of Daphnia to O2-poor water for days would result in ________________
an increase in hemoglobin concentration, a decrease in P50 of the blood, and a change in the globin
subunits is produced
Most dives by Weddell seals are
short and shallow
The P50 in a fish species adapted to a low oxygen aquatic environment would likely be
________________the P50 of a fish species adapted to a well-oxygenated aquatic environment
lower than
A respiratory pigment that requires a relatively low O2 partial pressure for loading has
________________ affinity for O2.
high
Which structure receives little or no blood during a prolonged forced dive in a diving mammal?
limbs
Which statement about hemoglobin is false?
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