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