Oxygen transport in blood, Biology

Assignment Help:

Oxygen Transport in Blood

All four respiratory pigments are adapted to load and unload oxygen effectively in I the habitats where they have evolved, whether animals live on land where the air contains 210 ml of oxygen per litre or in fresh water containing 8.0 ml / litre or in the sea containing 6.4 ml / litre. The loading unloading reaction can be written as

 

2165_Oxygen Transport in Blood.png

The direction of this reaction depends on Po2 of the environment and bond strength or affinity between haemoglobin and oxygen. In the lungs where Po, is high almost all deoxyhaemoglobin molecules bind to oxygen. Low Po2 in the systemic capillaries promotes unloading. Similarly strong affinity favours loading and weak bonding favours unloading. Haemoglobin has a bond strength which permits 97% of haemoglobin to combine with oxygen when leaving the lung. At the same time the bond is sufficiently weak to permit unloading in tissues. Under normal resting conditions 22% of the oxygen is unloaded. This satisfies the oxygen need of the body simultaneously maintaining a reserve that is utilised during emergency conditions.


Related Discussions:- Oxygen transport in blood

Interphase again between meiosis ii and meiosis i, Q. Is there interphase a...

Q. Is there interphase again between meiosis II and meiosis I? There is no interphase or DNA duplication between the divisions of meiosis. Only a short interval termed as diaki

Can you explain coronary angioplasty, Q. Can you explain Coronary Angioplas...

Q. Can you explain Coronary Angioplasty? The concept of coronary angioplasty - enlargement of the lumen of a stenotic vessel by a catheter technique was first proposed by Dotte

Define recommended dietary allowance for folate (rda), Define Recommended D...

Define Recommended Dietary Allowance for Folate (RDA)? Folate requirements are the intake levels necessary to prevent deficiency with clinical symptoms. The requirements are ex

Clinic blood pressure management, Raised blood pressure is a major risk fac...

Raised blood pressure is a major risk factor for cardiovascular disease. The higher the blood pressure, the higher the risk of stroke, coronary heart disease, kidney disease, heart

Left atrio-ventricular, The left atrio-ventricular aperture in man is guard...

The left atrio-ventricular aperture in man is guarded by

Shell - body form protozoans, Shell - body form Protozoans Majority of...

Shell - body form Protozoans Majority of protozoans posses an exoskeleton in the form of a shell, also called test. The shell forms a loose covering around the body of the ani

Assessment of peripheral vascular disorders - history, Assessment of Periph...

Assessment of Peripheral Vascular Disorders History Obtain the following information by interviewing the patient and family members Previous vascular surgery, previ

Sponges, Ask qimporatance of sponge in tourism industry

Ask qimporatance of sponge in tourism industry

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd