Photosynthesis: Plant Adaptations Quiz

What is the primary role of Rubisco in photosynthesis?

• To absorb sunlight

• To fix carbon dioxide

• To transport water

• To release oxygen

Which type of plant is most commonly associated with the Calvin cycle?

• C3 plants

• C4 plants

• CAM plants

• All of the above

What is a key adaptation of C4 plants that helps them maximise photosynthesis efficiency?

• Opening stomata at night

• Spatial separation of carbon fixation

• Using less water

• Growing in cold climates

How do CAM plants adapt to arid environments?

• By storing water in their leaves

• By opening their stomata at night

• By having deep roots

• By growing quickly

Which of the following is a characteristic of C3 plants?

• They have a high photorespiration rate

• They store carbon dioxide as malate

• They are found in desert environments

• They have a low photorespiration rate

What is the main advantage of the C4 photosynthetic pathway?

• It allows plants to grow in cold climates

• It reduces water loss

• It minimises photorespiration

• It increases oxygen production

Which of the following is a common feature of CAM plants?

• They perform photosynthesis only during the day

• They fix carbon dioxide at night

• They have a high rate of transpiration

• They are typically found in aquatic environments

What is the primary benefit of CAM photosynthesis for plants?

• Increased growth rate

• Reduced water loss

• Higher oxygen production

• Faster carbon fixation

Which type of plant is most likely to thrive in a hot, dry environment?

• C3 plants

• C4 plants

• CAM plants

• All of the above

What is the main reason CAM plants open their stomata at night?

• To increase oxygen intake

• To reduce water loss

• To speed up photosynthesis

• To absorb more sunlight