BI-1999
Photosynthesis equation
Biology · Secondary 4 · Hard · Photosynthesis equation
A potted plant is used to investigate whether light is needed for photosynthesis. The plant is destarched by keeping it in the dark for 24 hours, then one leaf is partly covered with black paper and the plant is placed in bright light for 4 hours.
Why is it necessary to destarch the plant before the experiment?
Why is it necessary to destarch the plant before the experiment?
- to ensure that no starch is present before the experiment starts
- to increase the rate of photosynthesis during the experiment
- to allow chlorophyll to recover from previous light exposure
- to remove all carbon dioxide from the leaves before testing
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.