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339201
Metabolism Quiz
Descripción
(The Metabolic System) Human Physiology 101 Test sobre Metabolism Quiz, creado por bethanylhann el 07/11/2013.
Sin etiquetas
human physiology 101
the metabolic system
human physiology 101
the metabolic system
Test por
bethanylhann
, actualizado hace más de 1 año
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Creado por
bethanylhann
hace casi 11 años
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Resumen del Recurso
Pregunta 1
Pregunta
Which of the following is a statement of the first law of thermodynamics?
Respuesta
Energy cannot be created or destroyed
Entropy is always decreasing
Entropy of the universe is constant
Kinetic energy is stored energy that results from the specific arrangement of matter
Energy cannot be transferred or transformed
Pregunta 2
Pregunta
Which of the following is a statement of the first law of thermodynamics?
Respuesta
Energy cannot be created or destroyed
Entropy is always decreasing
Entropy of the universe is constant
Kinetic energy is stored energy that results from the specific arrangement of matter
Energy cannot be transferred or transformed
Pregunta 3
Pregunta
During the electron transport chain, H2O is formed. Where does the oxygen for the synthesis of the water come from?
Respuesta
carbon dioxide (CO2)
glucose (C6H12O6)
molecular oxygen (O2)
pyruvate (C3H3O3)
lactate (C3H5O3 -)
Pregunta 4
Pregunta
During the electron transport chain, H2O is formed. Where does the oxygen for the synthesis of the water come from?
Respuesta
carbon dioxide (CO2)
glucose (C6H12O6)
molecular oxygen (O2)
pyruvate (C3H3O3)
lactate (C3H5O3 -)
Pregunta 5
Pregunta
Which of the following statement about alcohol / lactic acid fermentation is incorrect?
Respuesta
Oxygen is not the terminal electron acceptor.
NAD+ produced during fermentation can be reused during glycolysis to generate ATP.
Oxygen is the terminal electron acceptor.
Processes require another electron acceptor to replace oxygen.
Fermentation allow the cell to oxidize NADH back to NAD+ in the absence of oxygen.
Pregunta 6
Pregunta
Which of the following statements about ATP is correct?
Respuesta
The key to how ATP stores energy is in the diphosphate.
The phosphate groups are highly positively charged, therefore they repel each other.
The bonds between the phosphate groups are stable, having a positive ΔG
The bonds between the phosphate groups are easily broken by a condensation relation
None of the above
Pregunta 7
Pregunta
The oxidative phosphorylation involves:
Respuesta
the flow of protons across the inner mitochondrial membrane down their concentration gradient.
the flow of electrons through a large enzyme called ATP synthase.
the flow of electrons through the electron transport chain proteins located in the outer mitochondrial membrane.
the flow of protons across the outer mitochondrial membrane down their concentration gradient.
generating potential energy in the form of a pH gradient between the mitochondrial matrix and the cell cytoplasm.
Pregunta 8
Pregunta
How is ATP produced by glycolysis?
Respuesta
Through the priming reactions
Through the production of glyceraldehyde-3-phosphate
By substrate-level phosphorylation
As a result of the reduction of NAD+ to NADH
By oxidative phosphorylation
Pregunta 9
Pregunta
Which of the following is a correct definition of catabolism?
Respuesta
set of chemical reactions that occur in living organisms in order to maintain life
set of metabolic pathways which breakdown molecules into smaller units and release energy
set of metabolic pathways that construct molecules from smaller units
process by which the body breeaks down food so it can be absorbed by the blood stream
Pregunta 10
Pregunta
Place the following processes in the correct order
Respuesta
Electron Transport Chain,Pyruvate oxidation, Citric Acid Cycle, Glycolysis, Chemiosmosis
Glycolysis, Pyruvate oxidation, Citric Acid Cycle, Electron Transport Chain, Chemiosmosis
Glycolysis, Electron Transport Chain, Citric Acid Cycle,Pyruvate oxidation, Chemiosmosis
Pyruvate oxidation, Glycolysis, Chemiosmosis, Citric Acid Cycle, Electron Transport Chain
Pregunta 11
Pregunta
When NAD+ becomes NADH it has been ? When FADH2 becomes FAD it has been?
Respuesta
Transformed, Transformed
Oxidised, Oxidised
Reduced, Reduced
Oxidised, Reduced
Reduced, Oxidised
Pregunta 12
Pregunta
What is the goal of cellular respiration?
Respuesta
To use ATP
To release ATP
To conserve ATP
To produce ATP
To transform ATP
Pregunta 13
Pregunta
Which step of which process is rate limiting?
Respuesta
3, Glycolysis
7, Citric Acid Cycle
6, Glycolysis
4, Electron Transport Chain
2, Chemiosmosis
Pregunta 14
Pregunta
Pyruvate oxidation moves pyruvate from where to where?
Respuesta
Mitochondria, Cytoplasm
Matrix of Mitochondria, Lumen of Mitochindria
Cytoplasm, Extracellular fluid
Cytoplasm, Mitochondria
Pyruvate oxidation doesn't move pyruvate anywhere
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