Solved 2019 Question Paper ICSE Class 10 Biology — Question 7
Back to all questionsQuestion 5(a)
Given alongside is an apparatus which was set up to investigate a physiological process in plants. The setup was placed in bright sunlight. Answer the questions that follow : [5]
(i) Name the process being studied. Define the process.
(ii) Why was the pot enclosed in a rubber sheet?
(iii) Mention two external factors which can accelerate the above process.
(iv) List two adaptations in plants to reduce the above process.
(v) Draw a neat, labelled diagram of a stomatal apparatus.
(i) The process being studied is Transpiration. Transpiration is the process during which water is lost in the form of water vapour through aerial parts of the plant.
(ii) The pot was enclosed in a rubber sheet to prevent evaporation of water from the soil.
(iii) Two external factors which can accelerate Transpiration are:
- Bright sunlight
- Low humidity
(iv) Two adaptations in plants to reduce the above process are:
- Sunken stomata
- Narrow leaves
(v) Stomatal apparatus is shown in the labelled diagram below:
