What is the primary composition of alveolar gas?

Alveolar Gas Exchange Concepts

Interactive Video
•
Biology, Science, Chemistry
•
11th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Only nitrogen
Only carbon dioxide
Oxygen, carbon dioxide, and nitrogen
Only oxygen
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do oxygen levels in the alveolus compare to fresh air and oxygenated blood?
Same as fresh air
Higher than both
Between the levels of fresh air and oxygenated blood
Lower than both
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the oxygen level in a lung lobe when the air supply is blocked?
It decreases to the level of venous blood
It remains the same
It increases
It becomes the same as atmospheric air
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to carbon dioxide levels in a blocked lung lobe?
They match atmospheric levels
They decrease
They increase
They remain the same
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the ventilation/perfusion ratio in an alveolar shunt?
Greater than 1
Less than 1
Equal to zero
Equal to 1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the body's response to low oxygen levels in the pulmonary circulation?
Vasoconstriction
Vasodilation
No change
Increased blood flow
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term for the body's response to low oxygen levels in the pulmonary circulation?
Ischemic vasoconstriction
Hyperoxic vasodilation
Hypoxic vasoconstriction
Metabolic vasodilation
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