Directions: Use the information provided and your knowledge of Life Science to answer the following questions. Show all work where necessary.
Directions: Use the information provided and your knowledge of Life Science to answer the following questions. Show all work where necessary.
When plants perform photosynthesis, they use carbon dioxide (
The oxygen can be seen as bubbles forming on the surface of aquatic plants, like Elodea. This visible evidence shows that plants are changing air and water into new materials during growth.
Researchers from the Smithsonian Environmental Research Center measured oxygen production and carbon uptake by aquatic plants under different light levels.
Light Intensity (lux) | Oxygen Released (mL/min) | CO2 Absorbed (mg/hour) | Plant Growth (g/day) |
|---|---|---|---|
500 | 1.2 | 2.5 | 0.4 |
1000 | 2.8 | 5.3 | 0.8 |
2000 | 5.5 | 10.7 | 1.5 |
As light intensity increases, plants release more oxygen and absorb more carbon dioxide. This shows that plants are using
This experiment directly demonstrates how air and water are transformed into plant tissue and oxygen gas through photosynthesis.
Explain how plants use carbon dioxide and water to create new matter and release oxygen.
Include a clear claim, evidence from the text or data, and reasoning that links your evidence to your claim.
What relationship do you see between light intensity and plant gas exchange?
Use evidence from Table 1 to support your answer.
What provides the energy needed for plants to perform photosynthesis?
Which observation is evidence that plants release oxygen during photosynthesis?
Explain how increasing light intensity affects plant matter production.
Use evidence from Table 1 to support your answer.