Tale of Two Cells, A
- Synopsis
- Follows a link between the cells involved in human colour vision and a rather unusual bacterium from the Dead Sea. Dr Jim Bowmaker, Institute of Ophthalmology, London, describes the techniques for looking at human rod and cone cells. Although the structure of the human visual pigments is not known, some clues have emerged from an unexpected source. Dr Richard Henderson, Laboratory of Molecular Biology, Cambridge, has unravelled the structure of a light-sensitive molecule found in a salt-loving bacterium. This molecule, bacteriorhodopsin, turns out to be related to the human visual pigments. This shows that cells as different as those from a human and a bacterium share similar types of molecules that can be thought of as evolutionary variations on a theme.
- Series
- Biology: Form and Function, Course S203
- Language
- English
- Country
- Great Britain
- Medium
- Video; Videocassette. Standard formats. col. 24 min.
- Year of production
- 1991
- Availability
- Off-air recording licence
Sale; 1998 sale: £145.00 (+VAT +p&p) - Subjects
- Biology
- Keywords
- bacteria; cells; colour blindness; colour vision; molecules; vision
Credits
- Producer
- Rissa de la Paz
- Cast
Julie Berry
Production Company
- Name
Encyclopaedia Britannica Educational Corporation
- Web
- http://www.eb.com External site opens in new window
- Phone
- +1 312 347 7944
- Fax
- +1 312 347 7903
- Address
- Chicago, IL 60604
USA
Distributor
- Name
Open University Worldwide
- Web
- http://www.ouw.co.uk External site opens in new window
- Phone
- +44 (0) 1908 274066
- Address
- Walton Hall
Milton Keynes
MK7 6AA - Notes
- NB. As of May 2016 Open University Worldwide are no longer distributing DVDs. They have posted this message on their website: ‘Unfortunately Open University Worldwide Limited has decided that product sales are no longer viable given the reduced funding to Higher Education institutions and diminishing demand for the products we have traditionally stocked. At present the Open University Students Association (OUSA) will continue to sell the "Good Study Guide", and we are in discussion with other possible distributors to continue to make The Open University’s products available for purchase. As soon as we have any information on other channels of distribution we will update this notice’. Some products are still available via second hand dealers on Amazon.co.uk
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