BI-2014
Factors affecting photosynthesis
Biology · Secondary 4 · Hard · Factors affecting photosynthesis
A student investigates how light intensity affects the rate of photosynthesis in an aquatic plant by counting bubbles of oxygen released per minute. When the lamp is moved from 80 cm to 40 cm from the plant, the light intensity on the plant doubles. What will most likely happen to the rate of bubble production immediately after this change, assuming light was the limiting factor?
- The rate increases to a higher value than before.
- The rate decreases to half of the original value.
- The rate remains exactly the same.
- Photosynthesis stops completely.
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