A potometer' (from Greek ποτό = drunken, and μέτρο = measure), sometimes known as transpirometer, is a device used for measuring the rate of water uptake of a leafy shoot which is almost equal to the water lost through transpiration. The causes of water uptake are photosynthesis and transpiration. The rate of transpiration can be estimated in two ways: WebHigh blood pressure leads to an accumulation of tissue fluid. Explain how. 2. Increases outward pressure from (arterial) end of capillary / reduces inward. pressure at (venule) end of capillary; 3. (So) more tissue fluid formed / less tissue fluid is reabsorbed. Allow lymph system not able to drain tissues fast enough.

School Science/Potometer - Wikibooks

WebStarting about 2 cm from the free end of the capillary tubing, mark the tubing at 1 cm intervals using the ruler and marker pen. Make as many marks as possible (at least 6). Introduce a bubble into the capillary tubing by lifting the whole potometer upwards. ctd meaning accounting

A schematic diagram of the potometer assembly.

WebInformation about constructing the potometer The apparatus should be prepared by the technician in advance, to prevent accidents. It is crucial to avoid air bubbles in the assembled potometer. This is the most common reason for potometer failure. 1. Cut two 4mm holes and one 2mm hole in the bung (see safety note). 2. WebThe Ganong’s potometer comprises a glass tube, which is bent twice, and a glass cylinder having a wide mouth. A capillary tube is inserted into a horizontal glass bar attached to … 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 … earth awards 2021