Oxygen dissociation curves, Biology

Assignment Help:

Oxygen Dissociation Curves

The oxygen content of blood fully saturated or oxygenated can be calculated. It is known as the oxygen capacity of blood and this varies for different species. In humans the oxygen carrying capacity is 20 ml oxygen per 100 ml blood. The relationship of oxygen carrying capacity to surrounding oxygen concentration can be shown graphically by oxygen dissociation curves.

1504_Oxygen Dissociation Curves.png

Figure:  Oxygen dissociation curve shows how haemoglobin's oxygen binding capacity depends on partial pressure of oxygen.

These curves are obtained by subjecting blood samples to different partial pressures of oxygen. The per cent oxyhaemoglobin saturation at different partial pressures of oxygen is plotted. The oxygen dissociation curve is S-Shaped or a sigmoid curve. From the graph we can see how haemoglobin acts as a carrier of oxygen. Total saturation occurs in the lungs where arterial pressure is above 95 mm Hg and the oxygen is unloaded at low Po2 found in tissues (about 40 mm Hg).


Related Discussions:- Oxygen dissociation curves

Cardiac branches and cardiac plexuses, The vagus gives of one superior cerv...

The vagus gives of one superior cervical cardiac branch and an inferior cervical cardiac branch in the neck. These branches descend into the thorax and take part in performing the

Determine the uses of potassium, Determine the uses of Potassium Water ...

Determine the uses of Potassium Water soluble and exchangeable potassium is readily available to plants. This is extracted with Morgan reagent (10% sodium acetate in 3% acetic

Zoology, regenerstion in invertebrates

regenerstion in invertebrates

What factor contributed to the current variations, According to the theory ...

According to the theory of natural selection, what factor below contributed to the current variations in beak sizes of finch species on the Galapagos Islands? a. Finches dispersed

Objectives of eyelids-lacrimal apparatus-tear film dynamics, Define the obj...

Define the objectives of eyelids, lacrimal apparatus and tear film dynamics. By familiar with section, you should be capable to understand: a. All the functions of the eyeli

Striped muscles, STRIPED MUSCLES - These muscles are found in the li...

STRIPED MUSCLES - These muscles are found in the limbs, body walls, tongue, pharynx and beginning of oesophagus and are under the control of animal's will. These muscle f

Explain pathology of aortic stenosis, Q. Explain Pathology of aortic stenos...

Q. Explain Pathology of aortic stenosis? Congenital abnormalities of aortic valve may lead to unicuspid aortic valve. This may be dome shaped with central stenotic orifice. Uni

To show the respiration of a plant, To show the respiration of a plant ...

To show the respiration of a plant Place the plant in a test tube held in a weighted wooden block. Put this in a bowl having lime water and cover the plant with a jar. Keep the

Detect adverse events of a given marketed drug product, Problem 1: Whic...

Problem 1: Which are the best  procedure to adverse events of a given marketed Drug product? Mention methodology / procedure to detect adverse events of a given marketed pro

Explain the digestion of carbohydrates, Explain the Digestion of carbohydra...

Explain the Digestion of carbohydrates? You are aware that 60-70% of energy is supplied by the dietary carbohydrates which are primarily present as polysaccharides (starch) fol

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