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GCSE Combined Science · key term
The liquid component of blood, mainly water, which transports dissolved substances and suspends blood cells and platelets.
Used by AQA and Edexcel
Specification 4.2.2.3 · Paper 1
Revise: BloodBlood is a tissue consisting of plasma, with red blood cells, white blood cells and platelets suspended in it. Suspended means that these components are carried within the liquid rather than dissolved in it. Plasma makes up over half of blood's volume; most of the remainder consists of red blood cells.
Paper 1, Paper 2
The liquid component of blood in which blood cells and platelets are suspended and many transported substances are dissolved.
Revise: Blood and the Circulatory SystemBlood connects the body's organs: it carries oxygen and nutrients to cells and takes waste substances away. It also helps defend the body against infection and seals damaged blood vessels. These different jobs depend on four components: red blood cells, white blood cells, platelets and plasma.
Platelets are cell fragments, not complete cells. Plasma is the liquid component of blood.
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