Year 12 Biology
Mass transport in animals and plants
Haemoglobin and the oxygen dissociation curve, the structure and function of the heart and blood vessels, tissue fluid, and the transport of water and organic substances in plants by the xylem and phloem.
Mass transport in animals and plants free practice
No timer and no account needed. Check each answer as you go, then read the explanation.
1. In a potometer, the capillary tube has a cross-sectional area of 0.8 mm². The air bubble moves 30 mm in 6 minutes. What is the rate of water uptake in mm³ per minute?
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