starch grains
external digestion by bacteria
Benedict's test experimental materials
influence of oxygen on root growth experiment
influence of oxygen on root growth results
respiration chain
indication of CO2 in human exhalation by phenol red
fermentation tubes (yeast in right hand tube)
demonstration of respiratory heat
influence of temperature on enzyme activity
indication of respiratory CO2 by phenol red

Downloadable Large Pictures - Respiration    back
    Click on thumbnail to view            Smaller Pictures (friendly to dialup connections)