BIOLOGY | Material Cycles and Energy | Photosynthesis A. Photosynthesis Apparatus A
For measuring and analysing gas given off by plants such as Elodea. Comprises two syringes connected to a collecting tube via a 3-way tap. This arrangement enables the gas to be drawn along the capillary tube by one syringe and collected into the second syringe for analysis.The apparatus is mounted on a backboard 240 x 100mm. Capillary bore 1mm.
Direct Delivery – up to 7 days E8H24932
each £36.95 B. Philip Harris Potometer
Ideal for laboratory and field use, this apparatus allows the student to measure transpiration with minimal risk of breakages. The apparatus has only one glass component (the capillary tube) and is mounted on a strong backing plate. It consists of a capillary tube with millimetre scale connected via a 3-way tap to a syringe. The cut shoot is connected to the third outlet. The apparatus can also be used to measure humidity by connecting a porous pot to the third outlet.
• Dimensions overall: 150 x 165 x 80mm, length x height x depth.
• Capillary tube: 120 x 1mm, length x bore. Direct Delivery – up to 7 days E8H24920
B C. H Type Potometer
Suitable for individual student use, the cut shoot is attached to the side arm with tubing and the wide glass tube acts as the reservoir.
• Glass tube: 160 x 20mm length x depth, with side arm 8mm diameter.
For measuring and sampling gas given off by aquatic plants e.g. Elodea. Comprises a bulb tube graduated 0 to 150mm into which the cut end of an Elodea shoot is inserted. Gas collected in the burette may be drawn into a syringe for analysis. Overall height 300mm. Complete with 5cm syringe and screw clip. Capillary bore 1mm.
E. Pourous Pot 100mm x 35mm o/d x 28mm i/d. Direct Delivery – up to 7 days E8R05670