Respuesta :
Answer:
Explanation:
Based on the information from the search results, a suitable range of values for the independent variable (light intensity) in an investigation into the rate of photosynthesis could be achieved by varying the distance of the lamp from the photosynthesizing organism. The light intensity is proportional to the distance from the lamp to the plant, so by changing the distance, the light intensity can be varied .
To determine the specific range of values, it would be helpful to consider the practical aspects of the experiment and the sensitivity of the photosynthesizing organism to light. It is important to ensure that the range of values chosen allows for a measurable response in the form of oxygen bubbles produced during photosynthesis. The plants used in the experiment, such as Cabomba or Elodea, are sold in aquarium shops and are commonly used for this type of investigation .
It is recommended to start with a relatively low light intensity and gradually increase it to higher values. This will allow for the observation of a clear trend in the rate of photosynthesis as the light intensity increases. The specific distances can be determined based on the available equipment and the sensitivity of the photosynthesizing organism to light.
Remember to consider safety precautions and follow any guidelines or protocols provided by your educational institution or laboratory supervisor when conducting the experiment.
Summary:
The independent variable (light intensity) can be varied by changing the distance of the lamp from the photosynthesizing organism.
The light intensity is proportional to the distance from the lamp to the plant.
Start with a relatively low light intensity and gradually increase it to higher values.
Choose distances that allow for a measurable response in the form of oxygen bubbles produced during photosynthesis.
Consider safety precautions and follow guidelines or protocols provided by your educational institution or laboratory supervisor.
