General Science/Basic Science botany Plant Physiology Respiration Sample Test,Sample questions

Question:
The most common respiratory substrate that involves in oxidation is




1.Protein

2.Lipid

3.Vitamin

4.Glucose


Question:
.Biological Oxidation in which energy is extracted from organic compounds is





1.Transpiration

2.Respiration

3.Growth

4.Growth


Question:
.Number of steps involved in glycolysis




1.Two

2.Three

3.Four

4.Ten


Question:
.Succinic acid is converted to fumaric acid by





1.Dehydrogenase

2.Fumarase

3.Synthetase

4.Aconitase


Question:
1,3-bisphosphoglyceric acid is converted to 3-phosphoglyceric acid by the enzyme

1.Phosphofructokinase

2.Phosphoglucoisomerase

3.Phosphoglyceric Kinase

4.Phosphoglyceric mutare


Question:
2-Phosphoglyceric acid is catalysed to form phosphoenol pyruvate by the enzyme

1.Aldolase

2.Enolase

3.Phosphoglyceric mutase

4.Phosphofrutokinase


Question:
3-Phosphoglyceric acid is converted to 2-Phosphoglyceric acid by the enzyme




1.Phosphoglyceric mutase

2.Phosphofructokinase

3.Phosphoglyceric Kinase

4.Enolase


Question:
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


Question:
Acetly CoA is





1.2C compound

2.3C compound

3.4C compound

4.6C compound


Question:
Aerobic respiration is carried out by




1.Plants

2.Animals

3.Yeast

4.Algal


Question:
Aerobic respiration occurs in





1.Nucleus

2.Ribosome

3.Cytoplasm

4.Mitochodria


Question:
Anaerobic respiration is otherwise called as



1.oxidation

2.fermentation

3.glycolysis

4.external respiration


Question:
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


Question:
Citric is converted to cis-aconitic acid and this reaction is catalysed by





1.Dehydrogenase

2.Fumarase

3.Synthetase

4.Aconitase


Question:
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


Question:
Conversion of pyruvic acid into either ethyl alcohol or lactic acid is called





1.Fermentation

2.Transpiration

3.Aerobic respiration

4.Oxidative phosphorylation


Question:
Each NADPH? molecule generates





1.2 ATP molecules

2. 3 ATP molecules

3.4 ATP molecules

4.6 ATP molecules


Question:
Electron transport chain is also known as




1.Photo oxidation

2.Photophosphorylation

3.Oxidative phosphorylation

4.Cyclic Phosphorylation


Question:
Energy released during fermentation is





1.High

2.very high

3.Low

4.very low


Question:
Flavoproteins and Cytochromes are arranged in the inner membranes of


1.Thylakoids

2.Plasma membrane

3.Ribosomes

4. Mitochondria


Question:
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


Question:
Fumaric acid is catalysed into malic acid by





1.Dehydrogenase

2.Fumarase

3.Synthetase

4.Aconitase


Question:
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


Question:
Glucose 6-phosphate is converted to fructose 6-phosphate by





1.Hexokinase

2.Phosphogluco isomerase

3.Phosphofructokinase

4.Aldolase


Question:
Glucose is phosphorylated to glucose 6-phosphate in the presence of the enzymes





1.Enolase

2.Aldolase

3.Phosphoglucoisomerase

4.Hexokinase


Question:
Glycolysis is also known as






1.Calvin cycle

2.Citric acid cycle

3.TCA cycle

4.EMP pathway


Question:
Glycolysis occurs in




1.Mitochondria

2.Cytoplasm

3.Protoplasts

4.Chloroplasts


Question:
In most organisms, oxidation needs the partipation of




1.Oxygen

2.Carboindioxide

3.Molecular Oxygen

4.Hydrogen


Question:
Malate becomes oxaloacetate by the activity of the enzyme




1.Fumarase

2.Synthetase

3.Dehydrogenase

4.Aconitase


Question:
Net gain of ATP in glycolysis is


1.10

2.6

3.4

4.2


Question:
Number of ATP used in preparatory stage of glycolysis is

1.2

2.4

3.6

4.10


Question:
Number of NADPH? formed at the end of glycolysis is

1.2

2.4

3.6

4.10


Question:
Number of stages involved in the oxidation of glucose molecule is





1.Two

2.Three

3.Four

4.Six


Question:
Oxaloacetate reacts with acetyl CoA to form citric acid in the presence of an enzyme





1.Aconitase

2.Synthetase

3.Dehydrogenase

4.Fumarase


Question:
Oxidation of pyruvic acid occurs only under this condition




1.Fermentation

2.Anaerobic

3.Aerobic

4.Both aerobic and anaerobic


Question:
Phosphoenol Pyruvate is converted into Pyruvic acid by




1.Enolase

2.Aldolase

3.Pyruvic Kinase

4.Phosphoglyceric mutase


Question:
Pyruvic acid is oxidized to acetly co-enzyme A in the




1.Cytoplasm

2.Nucleus

3.Mitochondria

4.Ribosome


Question:
Reactions in which the breakdown of macromolecules to their simple precursors is called





1.Anabolism

2.Metabolism

3.Biosynthesis

4.Catabolism


Question:
Reactions involved in the synthesis of organic compounds from simple precursors is known as





1.Anabolism

2.Catabolism

3.Degradative reactions

4.Metabolism


Question:
Respiration falls under





1.Anabolism

2.Biosynthesis

3.Catabolism

4.Metabolism


Question:
Solution used in the respiroscope experiment is

1.Iodine

2.Sucrose

3.Mercury

4.Caustic potash


Question:
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?


Question:
The energy currency of the cell is





1.ADP

2.NADP

3.ATP

4.FADH?


Question:
The energy needed for living organisms is obtained by the oxidation of complex organic compounds by




1.Respiration

2.Transpiration

3.Anabolism

4.Biosynthesis


Question:
The mitochondria plays a dominant role in



1.Reproduction

2.Synthesis of Carbohydrates

3.Digestion of proteins

4.Aerobic Respiration


Question:
The number of ATP molecules generated by one FADH? is




1.2

2.3

3. 4

4.8


Question:
The organelle which plays a dominant role in respiration is




1.Ribosome

2.Endoplasmic reticulum

3.Chloroplast

4.Mitochondria


Question:
The overall net gain of FADPH? in oxidation of a glucose molecule is

1.2

2.4

3.6

4.10


Question:
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


Question:
The participation of molecular oxygen is required in




1.Anaerobic respiration

2.Fermentation

3.Aerobic respiration

4.Transpiration


Question:
The potential energy is transformed into kinetic energy by the plant by






1.Transpiration

2.Respiration

3.Photosynthesis

4.Reproduction


Question:
The power house of the cell is





1.Cytoplasm

2.Chlroplasts

3.Mitochondria

4.Nucleus


Question:
The process of conversion of glucose into pyruvic acid is



1.Cyclic photophosphorylation

2.Calvin cycle

3. Glycolysis

4.Non- photophosphorylation


Question:
The scientist is not involved in glycolysis




1.Calvin

2.Embden

3.Meyerhoff

4.Parnas


Question:
The special carrier of free energy is





1.ADP

2.FAD

3.NAD

4.ATP


Question:
The step common to both aerobic and anaerobic respiration is





1.Glycolysis

2.Kreb�s cycle

3.Fermentation

4.Photolysis


Question:
The total number of ATP molecules formed from one glucose molecule after oxidation is





1.4

2.6

3.18

4.38


Question:
The universal process is all organisms is

1.Kreb�s cycle

2.Oxidation of pyruvic acid

3.Glycolysis

4.Transpiration


Question:
This is not a Kreb s cycle




1.Citric acid cycle

2.Calvin cycle

3.Tricarboxylic acid cycle

4.TCA cycle


Question:
This is not liberated during the oxidation of carbohydrate




1.Energy

2.Carboindioxide

3.Hydrogen

4.Water


Question:
Total number of ATP formed in glycolysis are



1.Two

2.Three

3.Four

4. Thirty eight


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