Whether photorespiration would be present at low CO2 concentration in c3________ in c4_______
(high/ negligible / sometimes)
Whether photorespiration would be present at HIGH CO2 concentration in c3________ in c4_______
(high/ negligible / sometimes)
temperature optimum in c3________ in c4_______
(30-40 C/ 20-25 C/ above 40 C)