Photosynthesis in Plants Mock Test | NEET Botany Test Series Leave a Comment / Blog / By admin Photosynthesis in Plants -NEET(Botany) BEST OF LUCK!! 1 / 40 Both respiration and photosynthesis require Sunlight Green cells Cytochromes Organic substrate 2 / 40 How many ATP and NADPH are required for thesynthesis of 2 molecules of sucrose in maizeplant? 120 ATPs and 48 NADPH 72 ATPS and 48 NADPH 36 ATPS and 24 NADPH 60 ATPs and 24 NADPH 3 / 40 Chlorophyll a is concerned with Reaction centre Quantum Conversion Shield pigments Both (1) and (2) 4 / 40 . Both respiration and photosynthesis require Sunlight Green cells Cytochromes Organic substrate 5 / 40 The C₂ plants are twice more efficient as C3plants in terms of fixing CO₂ due to the presenceof Photorespiration Kranz anatomy Scotoactive stomata Differentiated mesophyll tissue 6 / 40 . OEC is located in Thylakoid membrane Stroma Cytoplasm Periplastidial space 7 / 40 Ratio of ATP consumed by C3 and C4 plants duringphotosynthesis for the formation of glucose is 5 : 3 3 : 5 1 : 1 1 : 2 8 / 40 . During photorespiration, carbondioxide is releasedoutside from Chloroplast Peroxis Mitochondrion Nucleus 9 / 40 Mark the odd one w.r.t external factors affectingphotosynthesis Temperature Carbon dioxide concentration Photosynthetic products Light intensity 10 / 40 Plants with 'Kranz' anatomy in leaf requireATP for starch synthesis in comparison to thoseplants which do not show 'Kranz' anatomy in leaf More Less No Either option (2) or (3) 11 / 40 . Which of the following statements is incorrectabout photorespiration?Calvin cycleNADPH No synthesis of ATP Synthesis of sugars Decrease in CO₂ fixation Utilisation of ATP 12 / 40 Which of the following statements is incorrectabout photorespiration?Calvin cycleNADPH 6 18 12 30 13 / 40 . How many ATP molecules are required forregeneration of RuBP molecule in C, plants forsynthesis of one glucose molecule? 6 18 12 30 14 / 40 . Which of these factors is not a limiting factoraffecting photosynthesis? Less CO₂ concentration Less O₂ concentration Less chlorophyll content Low light intensity 15 / 40 . Plants which lack 'Kranz' anatomy in their leaf Show chloroplast dimorphism Show double CO₂ fixation during day Require only NADPH₂ for CO₂ fixation Require both ATP and NADPH₂ for CO₂ fixation 16 / 40 . The enzyme required for the CO₂ fixation in the C₁cycle is PEP carboxylase RuBP oxygenase RuBP carboxylase PGA dehydrogenase 17 / 40 External electron donor is required During non-cyclic oloctron transport During cyclic electron transport By PS 11 Both (1) and (3) are correct 18 / 40 Which one is a cold sensitive enzyme in C₁ pathway? PEP carboxylase Hexokinose PEP synthetase PEP case 19 / 40 Which phase of C3 pathway needs one ATP percycle? Reduction phase (2) Glycolytic reversal Glycolytic reversal Carboxylation Regeneration 20 / 40 The absorption of light for chlorophyll-b is highest inregion Blue Green Red Violet 21 / 40 . If 6 CO₂ and 6 RuBP molecules are used as initialsubstrate for the reaction by RuBisCO, the numberof RuBP molecule regenerated is 4 6 5 3 22 / 40 During photorespiration, which one of the following is not formed in mitochondria? CO₂ NH3 0₂ NADH 23 / 40 For fixation of every CO₂ molecule entering in theCalvin cycle, how many molecules of ATP andNADPH + H* are required in C3 plants? 2 and 4 3 and 2 2 and 3 4 and 2 24 / 40 Find what is not true for chemiosmotic hypothesis This mechanism explains photophosphorylation ATP synthesis is linked to the development of proton gradient across the membrane of thylakoid NADP+ reductase enzyme is located on the stroma side of the thylakoid membrane Protons in the stroma increase in number while in thylakoid lumen there is decrease of protons 25 / 40 Find the Incorroct statement with respect tophotosynthosis Assimilatory power refers to ATP and NADPH + H* ATP and NADPH+H* is used to reduce CO₂ in biochemical pathway The flow of electrons through ETS is coupled with photophosphorylation Photophosphorylation can occur in the absence of light 26 / 40 Apart from chlorophyll, one other photosyntheticpigment present in blue green algae is Cytochrome-c C-phycocyanin ß-carotene Zeaxanthin 27 / 40 Cyclic photophosphorylation occurs when light of 23. The absorption of light for chlorophyll-b is highest inwavelengthsregion 400 nm and below are provided Only at 360 nm are available More than 680 nm is given Beyond 760 nm are avaliable 28 / 40 180 used in Ruben and Kamen's experiment inphotosynthesis to prove that O₂ gas evolves fromH₂O and not from CO₂ during light reaction, is anisotope of oxygen which is Heavy, radioactive and stable Heavy, non-radioactive and unstable Heavy, non-radioactive and stable Light, non-radioactive and stable 29 / 40 Which one is a major limiting factor duringphotosynthesis in C3 plant? CO₂-concentration Intensity of light Temperature Water 30 / 40 . The plants having scotoactive stomata are C₂-plants C₁-plants CAM-plants Aquatic plants 31 / 40 How many times C₁-cycles will operate to form onemolecule of glucose? 12 8 6 3 32 / 40 NADPH+H* is not formed in? Algae Green plants Purple sulphur bacteria Cyanobacteria 33 / 40 Which one is not correct with respect tophotosynthetic pigments? Carotenoids are called shield pigments Chlorophyll-a is the primary pigment Accessory pigments help in absorption of different wavelength of light The pigments act as reactant in photosynthesis 34 / 40 Which isotopes is/are used in photosynthesiexperiments? O18 C14 S32 Both A (1) and (2) 35 / 40 A+O₂---->B+CWhat does A,B and C respectively denote? RuBP, PGA and phosphoglycolate RuBP, 3-PGAL and phosphoglycoxylate RUMP, 3-PGAL and phosphoglyoxylate RUMP, PGA and phosphoglycolate 36 / 40 The special anatomical features that are found in C4plants are all, except C4 plants involves two types of cells i.e, mesophy cells and bundle sheath cells Bundle sheath cells have agranal chloroplasts Bundle sheath have thin wall, which are permeable to atmospheric gaseous exchange C4 plant has Kranz leaf anatomy 37 / 40 The plants where double fixation of CO₂ occurs are Amaranthus, Opuntia and Wheat Kalanchoe, Sugarcane and Tomato Rice, Sugarcane and Maize Amaranthus, Opuntia and Sorghum 38 / 40 Which enzyme is called cold sensitive enzyme andwhere is it found? RuBisCO PEP synthetase PEPcase Decarboxylase 39 / 40 Find the incorrect statement about thephotosynthetic pigment Pigments can absorb light of specific wavelength Chlorophyll a is universal pigment without which photosynthesis cannot occur in green plants and algae Chlorophyll has a porphyrin head and a phytol tail During oxidative phosphorylation, formation of ATP by chemiosmotic process always requires photon 40 / 40 Find out the incorrect statement with respect to thechemiosmotic hypothesis Chemiosmosis process requires a membrane, a proton pump, a proton gradient and ATP synthase enzyme Energy is used to pump protons ATP synthase enzyme is a transmembrane channel for diffusion of protons During oxidative phosphorylation, formation of ATP by chemiosmotic process always requires photon Your score isThe average score is 46% 0% Restart quiz