Respiration experiment

Numéro d’image : 12018152
Respiration experiment
Three respirometers ready to go into a water bath. The one on the left contains germinating peas,the middle one consists of the same number of peas but they are not germinating. The third vial contains glass beads to serve as a control. When submerged in water the rate of cell respiration will be measured by oxygen consumption in the vials. Since the data is measured by volume changes there are a number of variables kept constant to keep the experiment controlled. For instance,there are 25 peas used in each of the first two vials. In the middle vial glass beads were added to keep the volume constant between it and the vial of larger,germinating peas. In vial 3 the glass beads are of the same volume as the first two. Any change in the glass bead vial
Licence : Droits gérés
Crédit: Science Photo Library / Shields, Martin
Taille de l’image : 5146 px × 3418 px
Model Release : Non requis
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