Physiology
Duration : 30:30 Year : 2004 Code No. 3942
This pilot project on the series of lecture-based programme on Zoology introduces physiology. It contains the different branches and areas in Physiology and the interrelation between physiology with other subjects. The lecturer explains the important organ systems studied in mammalian physiology.
Cell Biology: 2.1.1
Duration : 28:00 Year : 2004 Code No. 3955
This is the first lecture on the series of lecture-based programmes on Zoology. Titled: “Cell Biology - an overview”.- Paper-II. The programme talks about the molecules of life that create cells. To explain this Stanley Miller’s experiment is shown to demonstrate the synthesis of organic molecules that provide the raw material from which the first organism generated. Cells are the structural and functional unit of life. Cells are of two types Prokaryotic cells and the Eukaryotic cells The programme explains the characteristics of both types of cells. Prokaryotic cells are so simple in their organization but the Eukaryotic cells offer so much of specialisation in its form, in its occurrence of organelles and in the different types of enzymes it contain and how they operate to continue life on earth. This is an introductory programme on cell biology.
Zoology: 2.19.1
Duration : 28:00 Year : 2004 Code No. 3999
Sometimes in our body, cells start multiplying irrationally and stops co-operating with each other. This is a state we call cancer.
A Cancer cell is a cell that grows out of control. Unlike normal cells, cancer cells ignore signals to stop dividing, to specialize, or to die and be shed. Growing in an uncontrollable manner and unable to recognize its own natural boundary, the cancer cells may spread to areas of the body where they do not belong.
The programme deals with:
* The different phases of cell cycle.
* The different characteristics of cancer cells i.e.
Loss of Cytoskeletal structure
Loss of contact inhibition
Loss of cell-to-cell adhesion
* Changes in cancer cells i.e. Hallmarks of Cancer.
* The different types of cancers depending on their origin and location.
* And finally, the progression of tumor from a normal cell to become cancerous.
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