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Transpiration Rate — Upper vs Lower Surface

Lesson 6 of 25 3D virtual lab schedule16 min

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touch_appDrag to rotate · pinch or scroll to zoom · controls change real measurements

flagWhat you'll discover

  • arrow_forwardMeasure time for colour change or bubble movement
  • arrow_forwardCompare two leaf surfaces
  • arrow_forwardCalculate relative transpiration rate

Botany Unit 2: practical aim

Compare transpiration rate from upper and lower surfaces using cobalt chloride paper/potometer idea. The 3D lab gives a realistic apparatus view, guided steps, calibrated controls and a student observation table so the practical can be rehearsed before the school lab.

How to use the virtual practical

Use the compact controls to change specimen, concentration, field, time or instrument setting. Press Next step to follow the method. Press Record to add the current observation to the practical notebook. Rotate the model only when you need a closer view; Reset view returns the correct examination angle.

Observation and result

Record the observation under “Transpiration rate”, include units where applicable, and write the conclusion with a reason. In microscopy practicals, count multiple fields; in physiological and biochemical practicals, compare the experimental tube with a control.

quizCheck your knowledge

1. What is the most important habit in a practical examination?
2. Why repeat fields/trials in biology practical work?