PHOTORESPIRATION

Question 1

Photorespiration organelles

Answer 1

chloroplast, peroxisome, mitochondrion

Question 2

C4

Answer 2

mesophyll: HCO3- and PEPcase
bundle shealth: malate –> CO2 –> 3-PGA
spatially separated

Question 3

C3 plants

Answer 3

Photosynthesis: Mesophyll cells
Absence of Kranz anatomy
No chloroplast in bundle sheath cells
Relatively less thicker bundle sheath
cells layers than C4 plants

Question 4

C4 plants

Answer 4

Photosynthesis: Mesophyll and bundle sheath cells
Presence of Kranz anatomy
Chloroplast in bundle sheath cells
Thicker bundle sheath cell layers

Question 5

Photorespiration

Answer 5

Generally, found in C3 plants
Chloroplast, Peroxisome, Mitochondria
Light-dependentpathway
No ATP production
H2O2 production
NH3 production
Substrate: Glycolate
Energy wastage process

Question 6

Respiration

Answer 6

All living organisms
Mitochondria
Light-independent pathway
ATP production
No H2O2 production
No NH3 production
Substrate: Glucose/pyruvate
Energy producing process

Question 7

CAM

Answer 7

PEPcase fixes HCO3- at night
Day: malate –> pyruvate –> CO2 –> calvin cycle
temporally separated
NADP- malic enzyme