Question

(please limit the wordiness of your response! state the important info and nothing else!) sophie tested how light affects the rate of photosynthesis by measuring the oxygen bubbles produced by. write a claim, evidence, reasoning (cer) response for the question below. how does light intensity affect the rate of photosynthesis in aquatic plants? c- e- r- rate of photosynthesis at different light intensities 0 2 4 6 8 10 12 14 16 18 20 oxygen bubbles per minute low light medium light high light light intensity b / u | ::: | = c e r

Explanation:

The claim is a statement answering the question. The evidence is data - here, the number of oxygen bubbles at different light intensities. The reasoning links the evidence to the claim using scientific concepts about photosynthesis.

• Claim: As light intensity increases, the rate of photosynthesis in aquatic plants increases.
• Evidence: The bar - graph shows that at low light intensity, there are about 5 oxygen bubbles per minute, at medium light intensity about 10 oxygen bubbles per minute, and at high light intensity about 18 oxygen bubbles per minute.
• Reasoning: Light is an essential factor for photosynthesis. Chlorophyll in plant cells absorbs light energy to convert carbon dioxide and water into glucose and oxygen. Higher light intensity provides more energy, enabling more efficient operation of the light - dependent reactions, which in turn drives the light - independent reactions and increases the overall rate of photosynthesis, resulting in more oxygen production.

Answer:

C: As light intensity increases, the rate of photosynthesis in aquatic plants increases.
E: At low light intensity, there are about 5 oxygen bubbles per minute; at medium light intensity about 10 oxygen bubbles per minute; at high light intensity about 18 oxygen bubbles per minute.
R: Light is essential for photosynthesis. Higher light intensity provides more energy for light - dependent reactions, driving the light - independent reactions and increasing oxygen production.