M.Sc. (Semester III) (CBCS) Examination Oct/Nov-2017
Botany
ADVANCED PLANT PHYSIOLOGY AND BIOCHEMISTRY
Day Date: Tuesday, 21-11-2017 Max. Marks: 70
Time: 02.30 PM to 05.00 PM
Instructions: Attempt total five questions.
Attempt any two questions from Q. 3 and 4.
Attempt any two questions from Q. 6 and 7.
Figures to the right indicate full marks.
Question 1 is compulsory.
Q.1 Choose correct alternatives: 14
During light reaction of photosynthesis
Water molecule splits CO2 reacts with H2sb
PGAL is synthesized O2 is combined with CO2
is the structural component of Photosynthesis.
Chloroplast Golgi complex
Mitochondria Lysosome
Calvin cycle is
Dependent on light Not dependent on light
Inhibited by light None of these
In C4 plants acts as CO2 acceptor.
PEPA Malic acid
OAA RUBP
The end product of sulphate metabolism is
Ammonia Glutamic acid
Glutathione Proline
PS-I is concerned with
Ionization of water
Formation of only ATP
Production of assimilatory power
None of these
Reduction of oxygen which forms water occurs during
Photosynthesis Respiration
Photorespiration None of these
Substrate for photorespiration is
Serine Glycolic acid
Indole acetic acid Malic acid
Glycolysis occurs in
Cytosol Mitochondria
Chloroplast Peroxisomes
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SLR-MD-138
10) is the site of repiration within the cell.
Ribosomes Golgi complex
Mitochondria Nucleus
11) Phosphofructokinase enzyme converts fructose 6 phosphate into
Glucose 6 phosphate Fructose 6 Biphosphate
Fructose 6 phosphate Glycine
12) The first stable compound of TCA cycle is
Oxaloacetic acid Oxalosuccinic acid
Citric acid Cis-aconitic acid
13) The only 5C compound produced during Krebs cycle is
Citrate Ketoglutarate
Succinate Oxalosuccinic acid
14) Reaction centre in PS I is
P700 P670
P600 M200
Q.2 Explain in brief light harvesting complexes. 07
Describe in detail TCA cycle. 07
Q.3 Explain electron transport chain in Mitochondria. 07
Describe the role of phosphate in plant metabolism. 07
Q.4 Give schematic representation of gluconeogenesis. 07
Describe photorespiration and state its significance. 07
Q.5 Write an essay on glycolysis. 07
What are the factors controlling phosphorus uptake? 07
Q.6 Give schematic representation of C3 cycle. 07
Give an account of Biosynthesis of starch. 07
Q.7 Explain
VAM and their role in P nutrition. 07
Secondary metabolites in Plants 07