Prepare for NEET Biology Photosynthesis in Higher Plants with MCQs & PYQs on NEET.GUIDE. Get free practice, previous year questions, and expert guidance to grasp light and dark reactions.
The ratio of oxygen consumed to CO2 released during photorespiration is:
1:1
1:2
2:1
3:1
Which of the following metabolites is transported from mesophyll cells to bundle sheath cells in C4 plants during active photosynthesis?
3-Phosphoglycerate (3-PGA)
Glyceraldehyde 3-phosphate (G3P)
Pyruvate
Malate or aspartate
Which enzyme in the Calvin cycle is directly responsible for incorporating CO2 into an organic molecule?
3-phosphoglycerate kinase
Glyceraldehyde 3-phosphate dehydrogenase
RuBisCO
Triose phosphate isomerase
The precise location of the oxygen-evolving complex (OEC) within the chloroplast is:
Stroma
Outer chloroplast membrane
Lumen side of the thylakoid membrane
Inner chloroplast membrane
Which of the following is NOT a direct product of the light-dependent reactions of photosynthesis?
ATP
NADPH
O2
Glucose
Photorespiration is initiated by the enzyme RuBisCO's ability to also bind:
O2
CO2
N2
H2O
In photorespiration, RuBP is converted to:
PGA and phosphoglycolate
Two molecules of PGA
Two molecules of phosphoglycolate
PGA and oxaloacetate
Which organelle is involved in the salvage pathway of photorespiration?
Chloroplast
Mitochondrion
Peroxisome
Golgi apparatus
During photorespiration, RuBisCO binds to which molecule instead of CO2?
Oxygen
Nitrogen
Hydrogen
Water
The first stable product of the C4 pathway is:
Oxaloacetate (OAA)
Pyruvate
3-phosphoglycerate (3-PGA)
Ribulose-1,5-bisphosphate (RuBP)
