Cell Differentiation is a process by which development of a living organism is achieved. Through a series of progressive changes, a generalized cell transforms into a specialized cell. The more specialized the cell becomes; the less likely it is to divide. After the seeds germinate, students prepare slides, then watch living material differentiate before their eyes.
They will also observe generalized cellular divisions in meristematic root cap tissue and isolate specialized cells. In the final activity, students diagram and label the differentiated cells. This experiment can also be used for independent student investigation. MICROSCOPES ARE NEEDED.
Scientific Concepts:
Observe differentiation of cells
Prepare slides use microscopes
Isolate specialized cells
Observe generalized cellular divisions in root tip tissue
Content List:
1Teacher's Guide with MSDS
50Student Worksheets and Guides
12LAB-AIDS‚® Chemplates‚® with spatulas and gas collector caps
12Gas delivery tubes
1Absorbent paper, pkg
1Vial of Calcium carbonate chips
1Vial of Unknown #1
1Vial of Unknown #2
1Vial of Unknown #3
1Vial of Unknown #4
1Drop controlled bottles of Barium chloride solution
1Drop controlled bottles of Antimony chloride solution
1Drop controlled bottles of Cadmium nitrate solution
1Drop controlled bottles of Lead acetate solution
1Drop controlled bottles of Potassium permanganate solution
1Drop controlled bottles of Sodium sulfate solution
1Drop controlled bottles of Sodium sulfite solution
1Drop controlled bottles of Zinc nitrate solution
3Drop controlled bottles of 6M Hydrochloric acid
3Drop controlled bottles of Limewater, saturated
3Drop controlled bottles of Sodium sulfite solution
Classroom Planning:
To complete this kit requires one ~50-minute class period.