Roots

Duration: 33

Year Published: 1960

Format: 16mm

Color: Color

Description: Presents the root as an organ integrated with the plant in structure and function and examines both aspects minutely. Shows fibrous and tap root systems and discusses how they vary. Examines root parts through a model and photomicrographs emphasizing regions of development. Tells how water and minerals are absorbed into the root by inhibition, diffusion, active transport, and ion exchange. Stresses mineral requirements of plants and how these are obtained; for instance, potassium 42 is one radioactive mineral used as tracer which demonstrates active transport.

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Indiana University Library Moving Image Archive

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