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Class 11 Biology
Respiration In Plants Chapter 14
Quiz 1
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Mitochondria are called the powerhouses of the cell. Which of the following observations support this statement?
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13
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12
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31
Which of the following is essential for the conversion of pyruvic acid to acetyl CoA?
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Mitochondria are found in almost all plant and animal cells.
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The enzymes of the Krebs cycle and the cytochromes are found in mitochondria.
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Mitochondria synthesise ATP.
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Mitochondria have a double membrane.
The TCA cycle is named after
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ATP
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TPP
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LAA
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NAD
In which of the following do the two names refer to one and the same thing?
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Robert Emerson
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Melvin Calvin
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Embden
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Hans Krebs
Pyruvic acid, the key product of glycolysis, can have many metabolic fates. Under aerobic conditions, it forms
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Krebs cycle and Calvin cycle
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Citric acid cycle and Calvin cycle
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Tricarboxylic acid cycle and citric acid cycle
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Tricarboxylic acid cycle and urea cycle
End-product of citric acid/Krebs cycle is
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CO2
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CO2+ H2O
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Lactic acid
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Acetyl CoA + CO2
Choose the correct statement.
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Citric acid
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CO2 + H2O
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Lactic acid
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Pyruvic acid
Which of the following is the key intermediate compound linking glycolysis to the Krebs cycle?
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There is a complete breakdown of glucose during fermentation.
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Pyruvate is formed in the mitochondrial matrix.
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During the conversion of succinyl CoA to succinic acid, a molecule of ATP is synthesised.
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Oxygen is vital in respiration for the removal of hydrogen.
Which of the following is not correct about the Krebs cycle?
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ATP
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Malic acid
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Acetyl CoA
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NADH
Most of the enzymes of the TCA cycle are present in
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It starts with a six-carbon compound.
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It occurs in mitochondria.
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It is also called the citric acid cycle.
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The intermediate compound which links glycolysis with the Krebs cycle is malic acid.
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