Avery is studying the oxygen dissociation curve of haemoglobin in her biology class. What shape does this curve exhibit?

BIO PROLIFERATION GASEOUS EXCHANGE

Quiz
•
Biology
•
9th - 12th Grade
•
Medium
NURUL BM
Used 7+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Linear
Circular
Sigmoid
Exponential
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During a biology experiment, Anika measured the partial pressure of oxygen (PO2) in a controlled environment. At what PO2 is haemoglobin about 98% saturated with oxygen?
40 mm Hg
80 mm Hg
100 mm Hg
60 mm Hg
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During a soccer match, William notices that his breathing becomes heavier as he runs. What happens to the affinity of haemoglobin for oxygen during exercise?
It increases
It remains the same
It fluctuates
It decreases
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During a biology class, Abigail learned that at rest, the human body unloads a certain percentage of oxygen to tissues. How much oxygen is unloaded to tissues at rest?
48%
38%
28%
18%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During a biology class, Rohan learns about the effects of altitude on oxygen levels. He discovers that when the partial pressure of oxygen (PO2) falls to 40 mm Hg, the percentage of oxygen saturation in haemoglobin is affected. What is the percentage of oxygen saturation in haemoglobin at this level?
85%
75%
65%
95%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During a biology experiment, Abigail observed the effect of subunit cooperativity on oxygen release from haemoglobin in red blood cells. What did she conclude about this process?
It has no effect
It makes release harder
It facilitates easier release
It prevents release
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During a physiology lecture, Mia learns about the Bohr effect. How does an increase in carbon dioxide concentration affect the oxygen affinity of haemoglobin?
It fluctuates
It decreases affinity
It increases affinity
It has no effect
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