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d) What is the regenerating portion called? e) What are the stem cells in Planaria called? What is their function?

d) What is the regenerating portion called? e) What are the stem cells in Planaria called? What is their function?

Principles Of Pharmacology Med Assist
Principles Of Pharmacology Med Assist
6th Edition
ISBN:9781337512442
Author:RICE
Publisher:RICE
Chapter12: Parenteral Equipment And Supplies
Section: Chapter Questions
Problem 22RQ
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c) Sketch your regenerating part for each fragment. d) What is the regenerating portion called? e) What are the stem cells in Planaria called? What is their function? f) Discuss behavioral response (movement, response to touch, light) observed for the tail fragment which is regenerating a new head. g) Discuss behavioral response (movement, response to touch, light) observed for the head fragment which is regenerating a new tail. h) How do you think Planaria actually DO the regeneration? What might be happening to their cells? How might regeneration be possible?
Transcribed Image Text:c) Sketch your regenerating part for each fragment. d) What is the regenerating portion called? e) What are the stem cells in Planaria called? What is their function? f) Discuss behavioral response (movement, response to touch, light) observed for the tail fragment which is regenerating a new head. g) Discuss behavioral response (movement, response to touch, light) observed for the head fragment which is regenerating a new tail. h) How do you think Planaria actually DO the regeneration? What might be happening to their cells? How might regeneration be possible?
Experimental Planaria #1 Cut in half inte front (anterior) and rear (posterior) Day t Measuring the Planaria This operation is best performed by removing some of the water from the dish into the lid with a clean pipette and waiting for the worm to stretch out. Measure the length of the worm in millimeters. (Aways replace the water right away, you can use the dish lid to transfer water to and from the pianaran environment.) A. Record the length of the front (anterior) section jusAFTED you cut. This is your INITIAL front length: 5m 6) B. Record the length of the rear (posterior) section just AF TERGU cut. This is your INITIAL rear length: mro C. Observe and record any behavioral responses just after your cut Day 2 Spend time under the microscope observing the cut Planaria. Answer the following questions based on your observations. NO measurements will be taken on this daL. a) Are the cut fragments showing signs of regeneration? b) How did you identify the regenerating portion? What color does it look like?
Transcribed Image Text:Experimental Planaria #1 Cut in half inte front (anterior) and rear (posterior) Day t Measuring the Planaria This operation is best performed by removing some of the water from the dish into the lid with a clean pipette and waiting for the worm to stretch out. Measure the length of the worm in millimeters. (Aways replace the water right away, you can use the dish lid to transfer water to and from the pianaran environment.) A. Record the length of the front (anterior) section jusAFTED you cut. This is your INITIAL front length: 5m 6) B. Record the length of the rear (posterior) section just AF TERGU cut. This is your INITIAL rear length: mro C. Observe and record any behavioral responses just after your cut Day 2 Spend time under the microscope observing the cut Planaria. Answer the following questions based on your observations. NO measurements will be taken on this daL. a) Are the cut fragments showing signs of regeneration? b) How did you identify the regenerating portion? What color does it look like?
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