The rate of transpiration

Question 1

Name the four things transpiration rate is affected by

Answer 1

light intensity
temperature
air flow
humidity

Question 2

What is the importance of light intensity and what happens

Answer 2

brighter light = higher rate

stomata closes when dark - photosynthesis can’t happen - little water escaped

Question 3

What is the importance of temperature and what happens

Answer 3

warmer = faster transpiration

warm - more energy in particles to evaporate out of the stomata

Question 4

What is the importance of air flow and what happens

Answer 4

better air flow = high rate
poor air flow = water vapour doesn’t move away - high concentration of water particles both sides so diffusion doesn’t happen
good air flow = no vapour - low concentration of water - diffusion happens quickly

Question 5

What is the importance of humidity and what happens

Answer 5

drier air - faster rate

humid - same as poor air flow