Plasma - GCSE Biology Definition

Reviewed by: Lára Marie McIvor

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Plasma is the liquid part of blood that carries blood cells and many other important substances around the body. It is a yellowish fluid that makes up more than half of the blood. Plasma transports nutrients, hormones, and proteins to where they are needed, and it also helps remove waste products. It plays a key role in maintaining blood pressure, regulating body temperature, and supporting the immune system by carrying antibodies that help fight infections.

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Lára Marie McIvor

Reviewer: Lára Marie McIvor

Expertise: Biology, Psychology & Sociology Subject Lead

Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.

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