Chapter15: Antibiotic Agents
Section: Chapter Questions
Problem 19RQ
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Question
Transcribed Image Text:Dlanama
Activity adapted from https://www.nwabr.ora/sites/default/files/Planaria Student.pdf
The Planaria research project:
During this investigation, you will conduct an experiment to explore the regenerative properties
of Planaria.
You will have three Planaria per team
1) Two "experimental" Planaria
a Experimental Planaria #1: This Planarian will be cut into half (transverse plane: see
figure below), that will result in two fragments with a front (anterior) and rear section
(posterior). Every team in the class will do the same! (Why is it important to have
experiments repeated multiple times?)
b. Experimental Planaria #2: This Planarian will be cut in a manner determined by your
team.
2) A "control" Planaria which will not be cut.
Important things to remember:
It is your responsibility to work in a cohesive manner with your team members.
This project will span over three class periods. Each class period accounts for the
following:
o Day 1- Making cuts and recording measurements
o Day 2- second class period- observations
Day 3- third class period- finalobservations and measurements
Make careful observations and record data as you conduct your investigation. It will
be necessary that you observe the Planaria multiple times under the microscope.
You may take pictures, videos and appropriate notes on this project handout as a
part of your data collection. In class discussion to follow next week about your
observation and results.
The conclusions and data analysis will be completed as a part of homework after
day 3.
Review the Planarian anatomy to decide on the cuts for experimental Planaria
Midine;
median plane
Decapitation
Mediolateral
Obique plane
Iransverse plane
Longitudinal
Lateral plane
Couy 200. Cogtion Stato Al tts teseved
Transcribed Image Text:Experimental Planaria #2
Original
Draw Cut
→ Prediction
What hypothesis are you testing with Planaria #2?
If your hypothesis is supported, what do you predict you will see?
Control Planaria
What is the purpose of having control animals in this investigation?
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