This kit, which is based on one formerly supplied by Science and Plants for Schools (SAPS), allows students to investigate photosynthesis using algae immobilised in calcium alginate.
ABOUT THIS KIT
Introductory school investigations of photosynthesis include the evolution of oxygen by Canadian pond weed (Elodea canadensis) or testing for starch in Pelargonium leaves that have been decolourised. Both methods are difficult to quantify, and the second method often misleads students.
In this procedure, algae, immobilised in calcium alginate, provide a standardised amount of photosynthetic material, enabling semi-quantitative experiments to be undertaken. The rate of carbon dioxide uptake by the immobilised cells is used to measure the rate of photosynthesis; this can be done simply by observing the colour change of hydrogencarbonate indicator, either by eye or using a colorimeter.
The effect of varying the intensity or wavelength of the light may be studied, as can the effect of temperature or cell density. Different species of algae or cyanobacteria may also be tested. The kit is therefore ideal for individual practical investigations.
This kit is based upon work undertaken by Debbie Eldridge from King Ecgbert School (Sheffield) while working on a SAPS/Robinson College Schoolteacher Fellowship.
The kit contains:
EACH STUDENT OR GROUP WILL ALSO NEED
The following replacement parts are available for the NCBE-SAPS Photosynthesis Kit:
NCBE-SAPS PHOTOSYNTHESIS KIT
NCBE-SAPS Photosynthesis kit .....£65.00 (GBP)
All the prices on this page are in GBP and do not include Value Added Tax (VAT). This tax applies within the European Union only. Postage and handling must also be paid on orders from outside the United Kingdom. Details of how to order are given on the price list and on the Ordering web page.
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