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 … WebThe indirect, written assessment is a component of both AS and A Level Biology. The direct assessment, known as the Practical Endorsement, is a component of A Level Biology only. The skills required for the practical skills assessments are set out in Module 1 of each specification: Development of practical skills in biology.
Potometer Experiment : Measuring the rate of …
WebGanong’s Potometer. A potometer is a device, which is used to measure water uptake by the plant shoot during transpiration. It is also known as transpirometer. Ganong’s potometer is used to measure the transpiration rate in a laboratory. The Ganong’s potometer comprises a glass tube, which is bent twice, and a glass cylinder having a wide ... Web1 Feb 2015 · Investigating 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 source from the plant Temperature: Temperature of room (cold room or warm room) law firm business development plan template
Biology Practical Skills Handbook - Oxford, Cambridge and RSA …
WebRemove the capillary tube from the beaker of water to allow a single air bubble to form and place the tube back into the water. Set up the environmental factor you are investigating. … WebSome examples of important procedures to keep in mind include: when inserting a shoot into a potometer, make sure the cut of the shoot is slanted and underwater; for respirometer practicals, the air must be replaced between each set-up. Risk assessment Identify any safety hazards in the practical, and state the level of risk involved. Web5 Jun 2016 · The transpiration stream has a pull on the water from the potometer to draw it up into the xylem which requires closed conditions that means that you maintain suction. The purpose of this experiment is to simulate transpiration from the leaves to the roots in … law firm business plans