Complete the sentences on transpiration with words from the list. Transpiration is the loss of water vapour from leaves. Water moves from the surface of ................................... cells into the air spaces by ................................... . Then the water vapour diffuses out of the leaf through the ................................... .
Calculate the difference in mass of water lost between the results for A and the results for B at 30 minutes.
Calculate the percentage increase in water loss shown for A between 10 minutes and 20 minutes. Give your answer to the nearest whole number.
The student repeated the investigation using the fan at half-speed. Draw a line on Fig. 3.2 to show the result you would expect when the fan is at half-speed.
State one factor, other than wind speed, that changes the rate of transpiration.