Haemoglobin (AQA A-Level Biology): Flashcards
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Function of haemoglobin
Function of haemoglobin
Transporting oxygen
Highest structural level of haemoglobin
Highest structural level of haemoglobin
Quaternary structure
Ion found in each haem group
Ion found in each haem group
ion
No. of molecules one haemoglobin can carry
No. of molecules one haemoglobin can carry
Four molecules
Loading/associating means
Loading/associating means
Binding with oxygen
Unloading/dissociating means
Unloading/dissociating means
Releasing oxygen
High affinity for oxygen means
High affinity for oxygen means
Readily takes up oxygen but releases it less easily
Effect of carbon dioxide on haemoglobin
Effect of carbon dioxide on haemoglobin
Causes shape changes, reduces oxygen affinity
Conditions at gas exchange surface
Conditions at gas exchange surface
High oxygen, low carbon dioxide
Why haemoglobin types differ between species
Why haemoglobin types differ between species
Different amino acid sequences evolved