Bohr shift
- Created by: z_mills1
- Created on: 05-06-14 16:10
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- Bohr shift
- change in shape of oxyhaemoglobin dissociation curve which results in the release of more oxygen in exercising muscles
- acidity of the blood
- in acidic conditions, oxygen splits more readily from haemoglobin
- higher acidity in the blood results from presence of CO2 and greater amount of lactic acid
- Temperature
- increases in temperature cause more O2 to be released from oxyhaemoglobin at tissues
- exercise generates heat so again more O2 will be released
- Haemoglobin
- red pigment that transports oxygen in the blood
- very efficient respiratory pigment
- Myoglobin
- found only in muscles
- has a higher affinity for oxygen than haemoglobin
- therefore, picks up all the oxygen released from haemoglobin and transports it to the muscles
- acts like a reservoir for oxygen should the muscle begin to contract
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