Welcome to the Quiz!
This quiz contains 9 questions from a mix of 1 subtopics.
What is the primary role of the gas exchange system in the body?
to ensure oxygen is taken into the body and carbon dioxide is removed
to ensure nitrogen is taken into the body and carbon dioxide is removed
to ensure carbon dioxide is taken into the body and oxygen is removed
to ensure oxygen is taken into the body and nitrogen is removed
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Which part of the gas exchange system contracts and moves down when we breathe in?
diaphragm
bronchi
trachea
lungs
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Where does gas exchange occur in the lungs?
trachea
alveoli
diaphragm
bronchi
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How does oxygen get transferred into the bloodstream?
by diffusing from an area of low concentration to high concentration into the alveoli
by diffusing from an area of high concentration to low concentration from the alveoli
by osmosis from the alveoli
by active transport from the alveoli
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Which of the following is NOT an adaptation of the lungs for efficient gas exchange?
moist surface
large surface area
thick walls
good blood supply
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How is carbon dioxide, a waste product of respiration, removed from the body?
it is transferred into the bloodstream and circulated around the body
it diffuses from the blood into the alveoli and is exhaled
it is broken down and used in respiration
it is absorbed by the alveoli and remains in the lungs
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What surrounds the alveoli to ensure a short distance for gas diffusion?
a network of capillaries
a network of bronchi
a layer of mucus
a layer of muscle
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What is the term for the movement of particles from an area of higher concentration to an area of lower concentration?
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Explain the adaptations of the lungs that make them efficient for gas exchange.
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