What are some regulated variables that are challenged during exercise?

Regulated variables are sensed processes that contribute to maintaining a relatively stable internal environment. Regulated variables that are challenged during exercise include blood glucose concentration, pH, body temperature, mean arterial pressure, P CO2 (partial pressure of carbon dioxide) and P O2, (partial pressure of oxygen).

in 1972 the fluid—mosaic membrane model of membrane structure was proposed based on thermodynamic principals of organization of membrane lipids and proteins and available evidence of asymmetry and lateral mobility within the membrane matrix [s. j. singer and g. l. nicolson, science 175 (1972) 720–731].

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