Jun 2, 2022 · Change the light intensity or wind speed or level of humidity or temperature (only one - whichever factor is being investigated) Reset the bubble by opening the tap below the reservoir; Repeat the experiment; The further the bubble travels in the same time period, the faster transpiration is occurring and vice versa ... Oct 19, 2024 · A potometer can be used to investigate the effect of environmental factors on the rate of transpiration. Potometer Experiment Apparatus. Plant shoot. Cutting board. Scalpel/scissors. Paper towels. Potometer. Volume scale. Beaker. Capillary tube. Stopwatch. Vaseline. Method. Cut a shoot underwater. This is done to prevent air from entering the ... ... OCR (A) Biology A-level Module 1: Development of practical skills in Biology PAG 5: Colorimeter OR Potometer Please note: You only need to do one from each PAG, and you don’t need to do the PAGs listed here, as long as you show the same skills that these are testing (see 5f of the specification for more information). ... 1. Set up the potometer. 2. Clamp the capillary tube into the stand. Place the bottom of the capillary tube into the beaker of water. 3. Smear petroleum jelly around the join to maintain airtight conditions. 4. Leave for 5 minutes for a bubble to be drawn into the capillary tube. 5. Measure the movement of the bubble along the capillary tube in a ... OCR (A) Biology A-level Module 1: Development of practical skills in Biology PAG 5: Colorimeter OR Potometer. Please note: You only need to do one from each PAG, and you don’t need to do the PAGs listed here, as long as you show the same skills that these are testing (see 5f of the specification for more information). ... ‘Using a potometer’ resource supports the use of practicals across various new 2015 A-level biology specifications (OCR, AQA, Edexcel and Eduqas). This simple potometer allows students to work individually or in pairs to measure the rate of transpiration of a plant specimen within a one hour lesson. ... The rate of transpiration can be investigated with the help of a potometer where water vapour lost by the leaf is replaced by water in the capillary tube. Therefore, measuring the movement of the meniscus can be used to determine the rate of transpiration. Factors . www.pmt.education ... Steps in using a potometer: Cut the shoot underwater at slant to increase the surface area for water uptake. Assemble the potometer with the shoot submerged in water. Keep the capillary tube end of the potometer submerged throughout the experiment. Check that the apparatus is airtight. Dry the leaves, and give the shoot time to acclimatise. ... A potometer can be used to investigate the water uptake of plants under different conditions. Figure 1.1 shows how a student investigated the effect of covering the leaves from plant shoots with grease on the water uptake of the shoots. ... May 8, 2020 · Learn how a potometer shows the rate of transpiration and the associated calculation. Learn how to set up the equipment, collect the data and try some commo... ... ">
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Jun 2, 2022 · Change the light intensity or wind speed or level of humidity or temperature (only one - whichever factor is being investigated) Reset the bubble by opening the tap below the reservoir; Repeat the experiment; The further the bubble travels in the same time period, the faster transpiration is occurring and vice versa
Oct 19, 2024 · A potometer can be used to investigate the effect of environmental factors on the rate of transpiration. Potometer Experiment Apparatus. Plant shoot. Cutting board. Scalpel/scissors. Paper towels. Potometer. Volume scale. Beaker. Capillary tube. Stopwatch. Vaseline. Method. Cut a shoot underwater. This is done to prevent air from entering the ...
OCR (A) Biology A-level Module 1: Development of practical skills in Biology PAG 5: Colorimeter OR Potometer Please note: You only need to do one from each PAG, and you don’t need to do the PAGs listed here, as long as you show the same skills that these are testing (see 5f of the specification for more information).
1. Set up the potometer. 2. Clamp the capillary tube into the stand. Place the bottom of the capillary tube into the beaker of water. 3. Smear petroleum jelly around the join to maintain airtight conditions. 4. Leave for 5 minutes for a bubble to be drawn into the capillary tube. 5. Measure the movement of the bubble along the capillary tube in a
OCR (A) Biology A-level Module 1: Development of practical skills in Biology PAG 5: Colorimeter OR Potometer. Please note: You only need to do one from each PAG, and you don’t need to do the PAGs listed here, as long as you show the same skills that these are testing (see 5f of the specification for more information).
‘Using a potometer’ resource supports the use of practicals across various new 2015 A-level biology specifications (OCR, AQA, Edexcel and Eduqas). This simple potometer allows students to work individually or in pairs to measure the rate of transpiration of a plant specimen within a one hour lesson.
The rate of transpiration can be investigated with the help of a potometer where water vapour lost by the leaf is replaced by water in the capillary tube. Therefore, measuring the movement of the meniscus can be used to determine the rate of transpiration. Factors . www.pmt.education
Steps in using a potometer: Cut the shoot underwater at slant to increase the surface area for water uptake. Assemble the potometer with the shoot submerged in water. Keep the capillary tube end of the potometer submerged throughout the experiment. Check that the apparatus is airtight. Dry the leaves, and give the shoot time to acclimatise.
A potometer can be used to investigate the water uptake of plants under different conditions. Figure 1.1 shows how a student investigated the effect of covering the leaves from plant shoots with grease on the water uptake of the shoots.
May 8, 2020 · Learn how a potometer shows the rate of transpiration and the associated calculation. Learn how to set up the equipment, collect the data and try some commo...