5C Factors affecting the rate of photosynthesis

Which of the following best describes the relationship between light intensity and the rate of photosynthesis?

• As light intensity increases, rate of photosynthesis increases

• As light intensity increases, rate of photosynthesis increases to a point, then plateaus

• As light intensity increases, rate of photosynthesis decreases

• There is no relationship between light intensity and the rate of photosynthesis

Which wavelengths of light result in the highest rate of photosynthesis?

• Blue and red

• Green and red

• Green and blue

• Red and yellow

Temperature and pH both affect the rate of photosynthesis due to the _______ involved.

• enzymes

• carbon dioxide

• light energy

• water

Which of the following best describes the relationship between carbon dioxide levels and the rate of photosynthesis?

• As carbon dioixde levels increase, rate of photosynthesis increases

• As carbon dioxide levels increase, rate of photosynthesis increases to a point, then plateaus

• As carbon dioxide levels increase, rate of photosynthesis decreases

• There is no relationship between carbon dioxide levels and the rate of photosynthesis

Match the following graphs to the factor(s) that affects the rate of photosynthesis.

• pH

• 
• Temperature

• 
• Light intensity or carbon dioxide

•