DNA strand synthesis requires the four deoxynucleoside triphosphates—dGTP, dCTP, dATP, and dTTP in equal in vivo concentration

TLS Online TPP Program

#Id: 7293

#Unit 6. System Physiology – Plant

Operation of the C4 cycle requires the cooperative effort of both cell types. No mesophyll cell of a C4 plant is more than two or three cells away from the nearest bundle sheath cell.

TLS Online TPP Program

#Id: 7294

#Unit 6. System Physiology – Plant

TLS Online TPP Program

#Id: 7295

#Unit 6. System Physiology – Plant

TLS Online TPP Program

#Id: 7296

#Unit 6. System Physiology – Plant

NADP:malate dehydrogenase is regulated via the thioredoxin system of the chloroplast

TLS Online TPP Program

#Id: 7297

#Unit 6. System Physiology – Plant

Phosphorylated PEPCase is catalytically more active and less sensitive to inhibition by malate than the nonphosphorylated form. PEPCase‐kinase catalyzes the phosphorylation of PEPCase

TLS Online TPP Program

#Id: 7298

#Unit 6. System Physiology – Plant

PPDK-RP make PPDK active removing phosphates of catalytic his/threo residues using ADP as phosphoryl donor, rather than ATP, and the phosphorolytic dephosphorylation of the (PPDK)−Thr−O−P with formation of pyrophosphate, rather than the hydrolysis employed by most protein

phosphatases.