2.60: Understand the Role of Plasma in the Transport of Carbon Dioxide, Digested Food, Urea, Hormones and Heat Energy

PLASMA: Straw-coloured liquid mainly consisting of Water that dissolves materials and functions as transport medium for Human circulatory system

SUBSTANCE	ROLE OF PLASMA
CARBON DIOXIDE	Plasma transports waste Carbon Dioxide produced via aerobic respiration to the lungs for exhalation
DIGESTED FOOD	Plasma transports digested food to respiring cells for assimilation in the form of simple sugars (e.g glucose) and Amino acids
UREA	Plasma transports waste substances for removal out of the body - Plasma transports Urea from liver to the kidney for excretion
HORMONES	Plasma transports Hormones produced by Endocrine glands to target organs to stimulate change
HEAT ENERGY	As Plasma is mainly composed of Water which possesses high specific heat capacity, this allows Plasma to maintain a constant body temperature optimum for enzyme activity for metabolic reactions to occur (optimum body temperature is 37°C)