Ask a question from expert
(Solved) Animal Physiology - PDF
8 Pages1440 Words282 Views
Added on 2021-04-19
(Solved) Animal Physiology - PDF
Added on 2021-04-19
BookmarkShareRelated Documents
Running head: LABORATORY REPORT 1Laboratory ReportStudents NameUniversity Affiliate
LABORATORY REPORT 2LABORATORY REPORTAnimal physiology is the study of chemical and physical interior functions of animals.Expt 1: Sodium Uptake and Loss in Fresh Water CrayfishIntroductionCrayfish absorbs sodium and chloride ions from very dilute solutions. Absorption is continuous as part of salt balance mechanism. There is a salt balance when the salt uptake rate equals the total salt lost. The crayfish for this experiment was acclimated to low sodium concentration for two weeks. This experiment intends to investigate how sodium is absorbed and lost by crayfish to its environment.Methods1.The Crayfish was rinsed off with distilled water and its weight recorded.2.It was placed in the measured volume of the appropriate experimental sodium concentration.3.After five minutes time 0 sample was taken by removing a 5ml water sample into a clean tube and time recorded. This step was repeated at 30, 60 and 90 minutes.4.Using the correct worksheet calibration curve, values were entered into the grey cells, and sample photometer readings were added to obtain sodium concentration for the sample.5.The values for the medium sodium concentration and uptake rate were then entered on the class results table on the whiteboard before leaving the laboratory. 6.On week two, a worksheet was provided and the data was filled in to complete it. 7.All the green cells were filled
LABORATORY REPORT 38.The mean and standard error values were calculated both for the sodium concentration in the water and sodium influx rate.9.Passive sodium loss was determined, and Jmax values were derivedResultsThe results are as shown below
End of preview
Want to access all the pages? Upload your documents or become a member.