WebA mass potometer measures a change in mass of a plant as a measure of the amount of water that has evaporated from the leaves and stem A bubble potometer measures the uptake of water by a stem as a measure of the amount of water that is being lost by evaporation consequently pulling water up through the stem to replace it WebAge Ranges: post-16. This resource supports the use of practicals across various A-level biology 2015 specifications for England (OCR, AQA, Edexcel and Eduqas). This experiment allows students to go from the plant on the desk, to observing a stained specimen under the microscope in less than 4 minutes (as shown in the image above).
Common exam questions a level biology: section 3 Flashcards
Web1 Apr 2024 · A potometer is used in measuring the rate of transpiration of a plant Method: A leafy shoot is cut whilst underwater to ensure that water does not touch the leaves The potometer is filled with water with no air bubbles inside Using a rubber tube, the leafy shoots are fitted to the potometer whilst underwater Web14 May 2024 · Hi guys, I currently do a level biology and I'm pretty good at the maths questions except for the rate of uptake by a potometer, volume of water etc. Are there any equations I should know? When I google it, the equations are different each time. Also, below is a question I got wrong in the mock. Can someone help me understand how the answer … dennis lillee aluminium cricket bat youtube
Investigating transpiration - Structure of plants – WJEC - GCSE …
WebInvestigating transpiration rates using a potometer Environmental factors can be investigated in the following ways: Airflow: Set up a fan or hairdryer Humidity: Spray water in a plastic bag and wrap around the plant Light intensity: Change the distance of a light … WebA simple potometer is a piece of capillary tubing to which a plant has been connected. The water uptake is measured by recording the time taken for a bubble in the tube to move a … Web1 Aug 2024 · Obtain two glass slides, and prepare a smear of each of the two bacterial cultures, one per slide, as demonstrated. Allow to COMPLETELY air dry and heat fix. Stain both smears using the Gram stain method. Observe the slides with a light microscope at 1,000X and record your observations in the table below. dennis lind attorney missoula mt