Chapter 8: C3, C4, and CAM Photosynthesis

Question 1

• most plants use this type

- first product is a three-carbon compound, 3-phosphoglycerate

Answer 1

C3 photosynthesis

Question 2

• includes many grasses in hot/dry climates

- first product is a four-carbon compound

Answer 2

C4 photosynthesis

Question 3

• variation on C4, includes cacti

- take in CO2 at night to avoid water loss, store it as malate to use in sunlight

Answer 3

crassulacean acid metabolism (CAM)

Question 4

• binds O2 and releases CO2
• phosphoglycolate is broken down to glycolate, which is oxidized to CO2
• no ATP is produced

Answer 4

photorespiration