#Question id: 10155
#Unit 6. System Physiology – Plant
Which of the following components carries out oxygen cycle and also produces hydrogen per oxide ?
#Question id: 10156
#Unit 6. System Physiology – Plant
Which of the following statements is False about Rubisco?
#Question id: 10157
#Unit 6. System Physiology – Plant
In Glycolate pathway, Glycine exits the peroxisomes and enters the mitochondria where a multienzyme complex catalyzes the conversion of two molecules of glycine and one molecule of NAD+ into one molecule each of serine, NADH, NH4 +, and CO2; the enzyme complex used in this reaction is
#Question id: 10158
#Unit 6. System Physiology – Plant
Following are some statements regarding CO2 assmilation;
a.) The reduction process-Hydroxypyruvate convert into Glycerate in Peroxisomes in Glycolate pathway
b.) In Calvin-Benson cycle action of Transketolase produces erythrose 4-phosphate and xylulose 5-phosphate during regeneration step
c.) In C4 cycle phosphoenolpyruvate carboxylase (PEPCase), catalyzes the initial carboxylation in mesophyll cells close to the external atmosphere
d.) The stomata of CAM plants open at night
Which of the following above statements combination TRUE?
#Question id: 10159
#Unit 6. System Physiology – Plant
The ambient temperature exerts an important influence over Ω and the concentrations of CO2 and O2 around the active site of rubisco. Warmer environments have the effect of; Find the incorrect one?
#Question id: 10160
#Unit 6. System Physiology – Plant
Which of the following statements about the C4 cycle is true ?
a.) C4 plants uses the enzyme phosphoenolpyruvate carboxylase (PEPCase), rather than rubisco
b.) Unlike rubisco, O2 does not compete with HCO3 − in the carboxylation catalyzed by PEPCase
c.) initial carboxylation catalyzes in bundle sheath cells, four-carbon acids formed and flow across the diffusion barrier to the mesophyll cells
d.) during decarboxylation, releasing CO2 that is refixed by rubisco via the Calvin–Benson cycle