The most common respiratory substrate that involves in oxidation is
1.Protein
2.Lipid
3.Vitamin
4.Glucose
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.Biological Oxidation in which energy is extracted from organic compounds is
1.Transpiration
2.Respiration
3.Growth
4.Growth
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.Number of steps involved in glycolysis
1.Two
2.Three
3.Four
4.Ten
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.Succinic acid is converted to fumaric acid by
1.Dehydrogenase
2.Fumarase
3.Synthetase
4.Aconitase
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1,3-bisphosphoglyceric acid is converted to 3-phosphoglyceric acid by the enzyme
1.Phosphofructokinase
2.Phosphoglucoisomerase
3.Phosphoglyceric Kinase
4.Phosphoglyceric mutare
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2-Phosphoglyceric acid is catalysed to form phosphoenol pyruvate by the enzyme
1.Aldolase
2.Enolase
3.Phosphoglyceric mutase
4.Phosphofrutokinase
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3-Phosphoglyceric acid is converted to 2-Phosphoglyceric acid by the enzyme
1.Phosphoglyceric mutase
2.Phosphofructokinase
3.Phosphoglyceric Kinase
4.Enolase
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A large amount of free energy is liberated when high energy bonds of ATP are broken by
1.Glycolysis
2.Hydrolysis
3.Electrolysis
4.Photolysis
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Acetly CoA is
1.2C compound
2.3C compound
3.4C compound
4.6C compound
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Aerobic respiration is carried out by
1.Plants
2.Animals
3.Yeast
4.Algal
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Aerobic respiration occurs in
1.Nucleus
2.Ribosome
3.Cytoplasm
4.Mitochodria
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Anaerobic respiration is otherwise called as
1.oxidation
2.fermentation
3.glycolysis
4.external respiration
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At the end of glycolysis, each glucose molecule is formed into
1.One molecule of pyruvic acid
2.Two molecule of Pyruvic acid
3.Three molecule of pyruvic acid
4.Four molecule of pyruvic acid
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Citric is converted to cis-aconitic acid and this reaction is catalysed by
1.Dehydrogenase
2.Fumarase
3.Synthetase
4.Aconitase
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Co-enzymes
1.always accompany enzymes
2.function only by addition of small molecules
3.function only in the presence of enzymes
4.are used to synthesize enzymes
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Conversion of pyruvic acid into either ethyl alcohol or lactic acid is called
1.Fermentation
2.Transpiration
3.Aerobic respiration
4.Oxidative phosphorylation
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Each NADPH? molecule generates
1.2 ATP molecules
2. 3 ATP molecules
3.4 ATP molecules
4.6 ATP molecules
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Electron transport chain is also known as
1.Photo oxidation
2.Photophosphorylation
3.Oxidative phosphorylation
4.Cyclic Phosphorylation
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Energy released during fermentation is
1.High
2.very high
3.Low
4.very low
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Flavoproteins and Cytochromes are arranged in the inner membranes of
1.Thylakoids
2.Plasma membrane
3.Ribosomes
4. Mitochondria
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Fructose 1 6-phosphate is cleaved into two 3-carbon compounds in the presence of an enzyme
1.Hexokinase
2.Aldolase
3.Phosphofructokinase
4.Phosphoglucoisomerase
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Fumaric acid is catalysed into malic acid by
1.Dehydrogenase
2.Fumarase
3.Synthetase
4.Aconitase
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Ganong s respiroscope experiment is to demonstrate that
1.O? is evolved during photosynthesis
2.CO? is necessary for photosynthesis
3.CO? is released during respiration
4.Light is necessary for photosynthesis
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Glucose 6-phosphate is converted to fructose 6-phosphate by
1.Hexokinase
2.Phosphogluco isomerase
3.Phosphofructokinase
4.Aldolase
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Glucose is phosphorylated to glucose 6-phosphate in the presence of the enzymes
1.Enolase
2.Aldolase
3.Phosphoglucoisomerase
4.Hexokinase
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Glycolysis is also known as
1.Calvin cycle
2.Citric acid cycle
3.TCA cycle
4.EMP pathway
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Glycolysis occurs in
1.Mitochondria
2.Cytoplasm
3.Protoplasts
4.Chloroplasts
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In most organisms, oxidation needs the partipation of
1.Oxygen
2.Carboindioxide
3.Molecular Oxygen
4.Hydrogen
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Malate becomes oxaloacetate by the activity of the enzyme
1.Fumarase
2.Synthetase
3.Dehydrogenase
4.Aconitase
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Net gain of ATP in glycolysis is
1.10
2.6
3.4
4.2
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Number of ATP used in preparatory stage of glycolysis is
1.2
2.4
3.6
4.10
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Number of NADPH? formed at the end of glycolysis is
1.2
2.4
3.6
4.10
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Number of stages involved in the oxidation of glucose molecule is
1.Two
2.Three
3.Four
4.Six
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Oxaloacetate reacts with acetyl CoA to form citric acid in the presence of an enzyme
1.Aconitase
2.Synthetase
3.Dehydrogenase
4.Fumarase
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Oxidation of pyruvic acid occurs only under this condition
1.Fermentation
2.Anaerobic
3.Aerobic
4.Both aerobic and anaerobic
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Phosphoenol Pyruvate is converted into Pyruvic acid by
1.Enolase
2.Aldolase
3.Pyruvic Kinase
4.Phosphoglyceric mutase
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Pyruvic acid is oxidized to acetly co-enzyme A in the
1.Cytoplasm
2.Nucleus
3.Mitochondria
4.Ribosome
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Reactions in which the breakdown of macromolecules to their simple precursors is called
1.Anabolism
2.Metabolism
3.Biosynthesis
4.Catabolism
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Reactions involved in the synthesis of organic compounds from simple precursors is known as
1.Anabolism
2.Catabolism
3.Degradative reactions
4.Metabolism
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Respiration falls under
1.Anabolism
2.Biosynthesis
3.Catabolism
4.Metabolism
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Solution used in the respiroscope experiment is
1.Iodine
2.Sucrose
3.Mercury
4.Caustic potash
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The Co-enzymes which act as hydrogen carriers from respiratory substrate to electron transport chain are
1.ADP
2.FAD
3.NAD
4.FAD? and NAD?
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The energy currency of the cell is
1.ADP
2.NADP
3.ATP
4.FADH?
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The energy needed for living organisms is obtained by the oxidation of complex organic compounds by
1.Respiration
2.Transpiration
3.Anabolism
4.Biosynthesis
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The mitochondria plays a dominant role in
1.Reproduction
2.Synthesis of Carbohydrates
3.Digestion of proteins
4.Aerobic Respiration
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The number of ATP molecules generated by one FADH? is
1.2
2.3
3. 4
4.8
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The organelle which plays a dominant role in respiration is
1.Ribosome
2.Endoplasmic reticulum
3.Chloroplast
4.Mitochondria
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The overall net gain of FADPH? in oxidation of a glucose molecule is
1.2
2.4
3.6
4.10
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The overall reaction of glucose oxidation is
1.C?H??O? + 6O? ? 6CO?+6H?O+2900 kJ energy
2.C?H??O? + 6O? ? 4CO?+8H?O+2900 kJ energy
3.C?H??O? + 4O? ? 6CO?+6H?O+2900 kJ energy
4.C?H??O? + 6O? ? 6CO?+4H?O+2900 kJ energy
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The participation of molecular oxygen is required in
1.Anaerobic respiration
2.Fermentation
3.Aerobic respiration
4.Transpiration
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The potential energy is transformed into kinetic energy by the plant by
1.Transpiration
2.Respiration
3.Photosynthesis
4.Reproduction
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The power house of the cell is
1.Cytoplasm
2.Chlroplasts
3.Mitochondria
4.Nucleus
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The process of conversion of glucose into pyruvic acid is
1.Cyclic photophosphorylation
2.Calvin cycle
3. Glycolysis
4.Non- photophosphorylation
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The scientist is not involved in glycolysis
1.Calvin
2.Embden
3.Meyerhoff
4.Parnas
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The special carrier of free energy is
1.ADP
2.FAD
3.NAD
4.ATP
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The step common to both aerobic and anaerobic respiration is
1.Glycolysis
2.Kreb�s cycle
3.Fermentation
4.Photolysis
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The total number of ATP molecules formed from one glucose molecule after oxidation is
1.4
2.6
3.18
4.38
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The universal process is all organisms is
1.Kreb�s cycle
2.Oxidation of pyruvic acid
3.Glycolysis
4.Transpiration
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This is not a Kreb s cycle
1.Citric acid cycle
2.Calvin cycle
3.Tricarboxylic acid cycle
4.TCA cycle
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This is not liberated during the oxidation of carbohydrate
1.Energy
2.Carboindioxide
3.Hydrogen
4.Water
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Total number of ATP formed in glycolysis are
1.Two
2.Three
3.Four
4. Thirty eight
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