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

The following statements were made regarding photosynthesis: A. Conversion of 3-phosphoglycerate into glyceraldehyde-3-phosphate is a reduction process which utilizes ATP as well as NADH in Calvin cycle B. Conversion of […]

79. Which one of the following metabolites formed during Calvin-Benson cycle in chloroplast is involved in starch biosynthesis and can also be transported to cytosol? (1) Triose phosphate (2) Glyceraldehyde-3 […]

78. The following statements were made with the assumption that the concentration of 3 phosphoglycerate is high inside chloroplasts of an actively photosynthesizing leaf. A. There will be high concentration […]

From the following statements: (A) Triose phosphate is utilized for the synthesis of both starch and sucrose. (B) Triose phosphate is translocated to cytosol from chloroplast. (C) Triose phosphate is […]

76. Following are some enzyme-substrate combinations involved in the conversion of photosynthetically formed triose-phosphate to sucrose. A. Fructose-1,6-bisphosphate aldolase : Dihydroxyacetonephosphate. B. UDP-glucose pyrophosporylase : UDP-Glucose. C. Sucrose 6-phosphate synthase […]

75. The photosynthetic assimilation of atmospheric CO2 by leaves yield sucrose and starch as end products of two gluconeogenic pathways that are physically separated. Which one of the following combination […]

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 […]

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 […]

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 […]

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. […]