Respiration Experiments - Rate of Oxygen Consumption (Topic 5A)) Flashcards
What do Respirometers do
measure the amount of oxygen consumed in a given time
What temperature is the apparatus submerged at
15 degrees Celsius - optimum temperature for the enzymes involved in respiration
What does the control tube contain
glass beads of the same mass as the woodlouse
How long is the tap left open for
10 minutes to allow the apparatus to equilibrate
What is the syringe used for
to reset the manometer so the ends of the fluid are at the same level on each side of the U
How is oxygen consumption measured
it is the difference between the figure taken at the start of the experiment and the figure taken at the end of the experiment
How is the precision of the experiment checked
the experiment is repeated and a mean volume of O2 is calculated
