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 Possigeno con l’altitudine

Eritrocruorine disciolte nei liquidi circolantida 400.000 a 1.3000.000 dalton

ArenicolaLumbricus

Sabella

Cluorocroine, disciolte nel sangue 3.000.000 dalton

Sphirographis

eritrocruorine

emocianina

Lumache, calamari, octopus

Respiratory characteristics of the hemoglobin-free fish Chaenocephalus aceratus

Edvard 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 high cutaneous respiration.

deossi

ossi

Nell’adulto il 2% dell’emoglobina è costituita da invece che