Is Plasma Responsible for Transporting Oxygen in the Blood?

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Plasma does transport oxygen, but only a small fraction compared to hemoglobin. Approximately 98% of oxygen in the blood is carried by hemoglobin within erythrocytes, while only about 2% is dissolved directly in the plasma. Blood is primarily composed of plasma, which makes up roughly 55% of its volume, along with leucocytes, platelets, and erythrocytes. Plasma consists of water, ions, plasma proteins, hormones, and various dissolved substances, including glucose, vitamins, waste products, and respiratory gases like oxygen and carbon dioxide. Thus, while plasma does play a role in oxygen transport, its contribution is minimal compared to hemoglobin.
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Does plasma transport oxygen?
 
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A small bit of dissolved oxygen is present in the plasma, but it's dwarfed by the amount in hemoglobin.
 
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% 98 amount in hemoglobin , % 2 in the plasma (dissolved)
 
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Blood constitutes of plasma,leucocytes,platelets,and erythrocytes.Plasma covers the major component of the blood(roughly 55%).It consists of water ,ions,plasma proteins,hormones and dissolved substances(glucose and vitamins,waste products,and respiratory gases such as oxygen and carbon dioxide).So it is clear that plasma transports oxygen.:smile::biggrin:
 

Thread 'Here comes COVID-19 version BA.2, BA.4, BA.5,...'

Popular article referring to the BA.2 variant: Popular article: (many words, little data) https://www.cnn.com/2022/02/17/health/ba-2-covid-severity/index.html Preprint article referring to the BA.2 variant: Preprint article: (At 52 pages, too many words!) https://www.biorxiv.org/content/10.1101/2022.02.14.480335v1.full.pdf [edited 1hr. after posting: Added preprint Abstract] Cheers, Tom
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