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Gas e pigmenti respiratori. Le superfici respiratorie. I gas nei liquidi. Legge di Raoult. Legge di Henry. Comportamento dei gas reali. Costanti di Henry. Legge di Henry. Variazioni P ossigeno con l’altitudine. Eritrocruorine disciolte nei liquidi circolanti

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slide22

Eritrocruorine disciolte nei liquidi circolanti

da 400.000 a 1.3000.000 dalton

Arenicola

Lumbricus

slide24

eritrocruorine

Sphirographis

emocianina

emocianina

Lumache, calamari, octopus

slide26

Respiratory characteristics of the hemoglobin-free fish Chaenocephalus aceratusEdvard A Hemmingsena, b and Everett L Douglasa, baPhysiological Research Laboratory, University of California, San Diego, USAbDepartment o of Zoology, University of Missouri, Columbia, USAReceived 25 August 1969.  Available online 21 March 2003. Abstract Studies on the Antarctic hemoglobin-free fish Chaenocephalus aceratus showed that the oxygen consumption was unusually low; Low blood lactic acid levels at rest and after anoxic stress indicate no unusually high anaerobic metabolism. The main respiratory compensation to the absence of hemoglobin appearsto be an increase of blood volume and a highcutaneous respiration.

slide29

deossi

ossi

slide37

Nell’adulto il 2% dell’emoglobina è costituita da  invece che 