Tag: CSIR NET Life Science Previous Year Questions and Solution PHOTORESPIRATION AND RESPIRATION

During glycolysis in plants, alanine and related 10 acids are directly produced from which one of i‘he following precursors? (1) 3-Phosphoglycerate (2) Phosphoenolpyruvate (3) Pyruvate (4) Acetyl-CoA Introduction Alanine and […]

24. Glycolysis and citric acid cycle contribute precursors to many biosynthesis pathway in plants. column X lists names of the precursors and column Y lists the product synthesized.        Column […]

23. First committed precursor in biosynthesis of chlorophyll is: (1) delta-aminolevulinic acid                 (2)  Porphobilinogen (3) Protoporphyrin IX                         (4) coproporphyrinogen III The first committed precursor in the biosynthesis of chlorophyll is delta-aminolevulinic […]

22. Following are certain statements regarding respiratory metabolism on plants: A. Respiratory quotient during partial breakdown of carbohydrate (alcoholic fermentation) will be infinity. B. Respiratory quotient indirectly provides inforrnation about […]

21. Which of the following staternents with respect to altenate oxidase activity on cyanide- resistant respiration in plants. is not correct? (1) Alternate oxidase accepts electrons directly from cytochrorre C […]

20. According to the current model of alternative oxidase regulation, the following factors cause induction of atternative oxidase (A) significant increase on the ubiquitin pool in the cytosol. (B) Presence […]

19. Following are certain statements with regard to plant respiration: A. Metabolism of glucose into pyruvate through glycolysis generates NADH and not NADPH. B. Metabolism of glucose through oxidative pentose […]

18. The chemical salicyl hyrooxamic add (SHAM) inhibits (1) Cytochrome oxidase (2) Alternate oxidase (3) ATP synthase (4) NADH-dehydrogenase Salicylhydroxamic acid (SHAM) inhibits the alternate oxidase (AOX) in the mitochondrial electron transport […]

The alternative pathway of respiration can be inhibited by (1) Cyanide (2) SHAM (3) Arachidonic add (4) Ampicillin Introduction Plants have an alternative respiratory pathway that bypasses parts of the […]

16. In arum lily, the temperature of inflorescence rise around 10°C as compare to plant during blooming. The natural trigger for heat production in the inflorescences of Saummatum guttatum (voodoo […]