DrDAQ is a versatile instrument that connects to the USB port of any PC. Using the supplied PicoScope software it can be used as an oscilloscope, spectrum analyzer and signal generator.
It can be seen fro Figure 2 that the oxygen level makes a steady fall over the 48 hours showing the effects of the respiration of peas.
Figure 2: graphs of oxygen level and temperature with time
Ensure that the DrDAQ data logger does not come into contact with the water.
Thymol can be halmful if swallowed, inhaled or absorbed through the skin.
Ages 9–19 (Key Stage levels 3–5)
Here the process of aerobic respiration can be clearly indicated by the reduction in oxygen level (indicated by the oxygen probe) over time. KS3 Sc2 Life processes and living things. Green plants as organisms. Respiration. 3e that plants carry out aerobic respiration.
Return to experiment