Category: CSIR NET Life Science Previous Year Questions and Solution Plant Physiology

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 […]

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 […]

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. […]

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 […]

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 […]

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 […]

64. The quantum yield of photosynthetic carbon fixation in a C3 plant and C4 plant is studied as a function of leaf temperature. Following are some statements based on this […]

63. Following are certain statements regarding C3, C4 and CAM plants? A. The ratio of water loss to CO2 uptake is higher in CAM plants than it is in either […]

62. Following are some of the statements regarding the effect of CO2 concentration on photosynthesis in plants. A.With elevated CO2 levels, C3 plants are much more responsive than C4 plants […]

61. The C4 carbon cycle is a CO2 concentrating mechanism evolved to reduce photorespiration. The following are stated as important features of the C4 pathway: A. The leaves of C4 […]