74. A Plant with variegated plants were allowed for photosynthesis by placing it in light and then brought into dark, then final reserve material of photosynthesis, the starch will accumulate […]
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CSIR NET Life Science Previous Year Questions and Solution PHOTOSYNTHESIS
Optimal Temperature and Sunlight Conditions for Maximum Photosynthesis in C3 and C4 Plants
The table below shows photosynthetic type, temperature and sunlight intensity levels. Photosynthetic Type Temperature Sunlight Intensity A. C3 Plant i. High P. High B. C4 Plant ii. Moderate Q. Moderate […]
CSIR NET Life Science Previous Year Questions and Solution PHOTOSYNTHESIS
Rubisco’s Dual Role in Reductive and Oxidative Carbon Cycles:
72 Rubisco enzyme is involved in both reductive and oxidative carbon cycles in plants. Following are certain statements regarding them: A. Sugars are produced in both the cycles. B. Ferredoxin […]
CSIR NET Life Science Previous Year Questions and Solution PHOTOSYNTHESIS
Physiological Differences Between C3 Wheat and C4 Sorghum
71. Following observations were recorded while studying physiological parameters of sorghum and wheat under similar conditions: A. Sorghum RUBISCO exhibits relatively higher affinity for CO2 compared to that of wheat. […]
CSIR NET Life Science Previous Year Questions and Solution PHOTOSYNTHESIS
Essential Biochemical Features and Enzyme Regulation of Rubisco in Higher Plants
70. Following are certain statements regarding Rubisco, the predominant protein in plant leaves that catalyzes the initial reaction of the Calvin-Benson cycle. A. During the oxygenase activity of Rubisco, O2 […]
CSIR NET Life Science Previous Year Questions and Solution PHOTOSYNTHESIS
Rubisco enzyme in red and brown algae
Which one of the following are the correct encoding sites of large and small subunits of Rubisco enzyme in red and brown algae? (1) Large subunit is chloroplast and small […]
CSIR NET Life Science Previous Year Questions and Solution PHOTOSYNTHESIS
PEPCase is inactive whereas CAM PEPCase is active
68 Which one of the following statements regarding PEPCase is INCORRECT? (1) During the day, C4 PEPCase is inactive whereas CAM PEPCase is active. (2) PEPCase is inactivated by dephosphorylation. […]
CSIR NET Life Science Previous Year Questions and Solution PHOTOSYNTHESIS
CO2 assimilation in higher plants
Following are certain statements regarding CO2 assimilation in higher plants: A. The action of aldolase enzyme during Calvin-Benson cycle produces fructose 1,6-bisphosphate. B. The conversion of glycine to serine takes […]
CSIR NET Life Science Previous Year Questions and Solution PHOTOSYNTHESIS
C2, C3, C4 and CAM carbon metabolism in plants
66. Following are certain statements regarding C2, C3, C4 and CAM carbon metabolism in plants. A. In C3 cycle, one molecule of 3-phosphoglycerate formed during carboxylation phase is utilized for […]
CSIR NET Life Science Previous Year Questions and Solution PHOTOSYNTHESIS
Graphical Comparison of Net CO₂ Fixation in C3 and C4 Plants Under Increasing CO₂ Concentration
65. Which one of the following graphs best represents the net CO2 fixation of typical C3 and C4 plants under increasing CO2 concentration and saturating light? Introduction Understanding how C3 […]
