Comparing bubble production to determine photosynthesis rate

Steps:

• Examine diagrams for bubble counts per minute in each condition (A-D).
• Note factors like light, CO2, or temperature affecting each setup.
• Rank productions: identify maximum as highest rate.
• Confirm B exceeds all others.

Why B is correct:

• B produces most bubbles, directly measuring peak oxygen output per photosynthesis rate definition (volume of O2/time).

Why the others are wrong:

• A: Low bubbles from insufficient light, slowing photosynthesis.
• C: Moderate bubbles due to suboptimal CO2 levels.
• D: Fewest bubbles from high temperature inhibiting enzyme activity.

Final answer: B