#Question id: 10167
#Unit 6. System Physiology – Plant
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: 10168
#Unit 6. System Physiology – Plant
Mesophyll cells of NADP–ME type C4 photosynthesis use four transport steps across the chloroplast envelope to fix one molecule of atmospheric CO2
a.) import of cytosolic pyruvate through unknown transporter
b.) import of cytosolic oxaloacetate through dicarboxylate transporter
c.) Import of stromal phosphoenolpyruvate through unknown transporter
d.) export of stromal malate through dicarboxylate transportere.) export of stromal phosphoenolpyruvate through phosphoenolpyruvate phosphate translocator
f.) export of cytosolic oxaloacetate through dicarboxylate transporter
Find the correct four transporter from the given statements
#Question id: 10169
#Unit 6. System Physiology – Plant
Which of the following is not the effect of C3 and C4 cycle in hot and dry climates ?
#Question id: 10170
#Unit 6. System Physiology – Plant
Which of the following given facts regarding CAM Plants are TRUE?
a.) The leaves of CAM plants have traits that minimize water loss, such as thick cuticles, large vacuoles, and stomata with small apertures
b.) All CAM plants, the initial capture of CO2 into four-carbon acids takes place at night, and the posterior incorporation of CO2 into carbon skeletons occurs during the day
c.) The CO2 taken up during the night is fixed into malate
d.) Tight packing of the mesophyll cells enhances CAM performance by restricting CO2 loss during the day
#Question id: 10171
#Unit 6. System Physiology – Plant
Quantum flux, or photon flux density (PFD), is the number of incident quanta (singular quantum) striking the leaf, expressed in
#Question id: 10172
#Unit 6. System Physiology – Plant
leaves continuously adjust the orientation of their laminae such that they remain perpendicular to the sun’s ray and maximize light absorption by