Plant Basics
What is the main purpose of photosynthesis in plants?
Convert light energy to into chemical energy
Most common type of photosynthesis pathway?
C3 Photosynthesis
Where does the initial CO₂ fixation occur in C4 plants?
mesophyll cells
When do CAM plants open their stomata?
At night
What do C4 and CAM plants both avoid by modifying photosynthesis?
photorespiration
What are the two main stages of photosynthesis?
Light dependent reactions and calvin cycle
Why is C3 photosynthesis less efficient in hot, dry climates?
Photorespiration
What enzyme fixes CO₂ in C4 plants?
PEP carboxylase
Why do CAM plants open their stomata at night?
to reduce water loss
How do C4 and CAM plants differ in their method of CO₂ separation?
C4 separates spatially, CAM separates temporally
Chloroplast
What enzymes fixes CO2 in C3 plants?
RuBisCO
What kind of environments are C4 plants adapted to?
hot and sunny environments
What kind of environment do CAM plants live in?
dry or arid environments
Which type stores CO₂ as organic acid at night?
CAM plants
What gas do plants take in for photosynthesis?
Carbon Dioxide
What is photorespiration?
When RuBisCO binds to O2 insteand of CO2 wasting the energy
Name one example of a C4 plant
corn or sugarcane
Name one example of a CAM plant.
cactus or pineapple
Which type uses bundle sheath cells for Calvin cycle?
C4 plants
What molecule is the main product of the Calvin cycle?
Glucose
Which two types of plants evolved adaptions to reduce photorespiration?
C4 and CAM plants
What is the role of bundle sheath cells in C4 plants?
to perform the Calvin cycle in a low-oxygen environment
What is stored in CAM plants overnight for use during the day?
malic acid or organic acids containing CO₂
Which type would you expect to find in a desert?
CAM plants