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Cell Biology
- 1981 ----- color ----- 16 min ----- 16mm
- Cell biologists are beginning to understand the structure, functioning and history of the cell, the highly organized, complex chemical factories that are the building blocks of life. Cell specialization is examined in relation to the function it performs for an organism. The cell's three distinct regions--the nucleus, cytoplasm, and plasma membrane--are examined in detail, revealing a complex mixture of substances that allow the cell to transform food into energy, contribute to motion, or hold information-carrying DNA. Primitive, 3 billion-year-old prokaryotic cells (cells without nuclei) and symbiotic mergers are considered in an explanation of cellular evolution.
- Topics: (Biology, Microbiology)
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