If a long-day plant has a critical night length of 9 hours, which 24-hour cycle would prevent flowering? (SS)

#Question id: 10160

#I Life Science/ Life Sciences Group – I-V

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

#Question id: 10164

#I Life Science/ Life Sciences Group – I-V

C4 photosynthetic carbon cycle is also known as the

#Question id: 10165

#I Life Science/ Life Sciences Group – I-V

In the C4 photosynthetic carbon cycle involves uptake of CO2 in the form of HCO₃^-, the acceptor of the HCO₃^- is

#Question id: 10167

#I Life Science/ Life Sciences Group – I-V

Mechanisms of C4 acid transported mesophyll → bundle sheath for decarboxylation, which of the following CORRECT combination of decarboxylation process?

a.) NADP–malic enzyme (NADP–ME)→ transport Malate from mesophyll to bundle sheath

b.) NAD–malic enzyme (NAD–ME)→ transport Aspartate from mesophyll to bundle sheath

c.) PEP carboxykinase (PEPCK)→ transport Aspartate from mesophyll to bundle sheath

d.) PEP carboxylase (PEPCase)→ transport Malate from mesophyll to bundle sheath

#Question id: 10186

#SCPH05 I Biotechnology

#Question id: 10186

#SCPH06 I Botany