Photosynthesis In Higher Plants
CPMT 1992, 2009; BHU 1995; RPMT 1995; CBSE PMT 1995; KCET 1998; MP PMT 2000, 06; BVP 2000, 09; DPMT 2006; Kerala PMT 2009
Q1
Errorless
Dark reaction
Numerical
In $C _ { 3 }$ plants, the first stable product of photosynthesis during dark reaction is
(a) 3-phosphoglyceric acid (b)Phosphoglyceraldehyde (c) Malic acid (d) Oxaloacetic acid
(a) 3-phosphoglyceric acid (b)Phosphoglyceraldehyde (c) Malic acid (d) Oxaloacetic acid
Correct Answer: A
Explanation:
A
Q2
Errorless
Assertion and Reason
Numerical
Assertion : Cyclic photophosphorylation synthesizes ATP.
Reason ATP synthesize in cyclic photophosphorylation is not associated with NADPH formation.
Correct Answer: B
Explanation:
In case of cyclic photophosphorylation, the electron, while passing between ferredoxin and plastoquinone and/or over the cytochrome complex the electron loses sufficient energy to form ATP from ADP and inorganic phosphate.