339201
Descripción
Test por bethanylhann, actualizado hace más de 1 año
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Creado por bethanylhann
hace casi 11 años
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Pregunta 1
Pregunta
Which of the following is a statement of the first law of thermodynamics?
Respuesta
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Energy cannot be created or destroyed
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Entropy is always decreasing
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Entropy of the universe is constant
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Kinetic energy is stored energy that results from the specific arrangement of matter
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Energy cannot be transferred or transformed
Pregunta 2
Pregunta
Which of the following is a statement of the first law of thermodynamics?
Respuesta
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Energy cannot be created or destroyed
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Entropy is always decreasing
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Entropy of the universe is constant
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Kinetic energy is stored energy that results from the specific arrangement of matter
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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
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carbon dioxide (CO2)
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glucose (C6H12O6)
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molecular oxygen (O2)
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pyruvate (C3H3O3)
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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
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carbon dioxide (CO2)
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glucose (C6H12O6)
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molecular oxygen (O2)
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pyruvate (C3H3O3)
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lactate (C3H5O3 -)
Pregunta 5
Pregunta
Which of the following statement about alcohol / lactic acid fermentation is incorrect?
Respuesta
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Oxygen is not the terminal electron acceptor.
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NAD+ produced during fermentation can be reused during glycolysis to generate ATP.
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Oxygen is the terminal electron acceptor.
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Processes require another electron acceptor to replace oxygen.
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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
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The key to how ATP stores energy is in the diphosphate.
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The phosphate groups are highly positively charged, therefore they repel each other.
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The bonds between the phosphate groups are stable, having a positive ΔG
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The bonds between the phosphate groups are easily broken by a condensation relation
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None of the above
Pregunta 7
Pregunta
The oxidative phosphorylation involves:
Respuesta
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the flow of protons across the inner mitochondrial membrane down their concentration gradient.
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the flow of electrons through a large enzyme called ATP synthase.
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the flow of electrons through the electron transport chain proteins located in the outer mitochondrial membrane.
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the flow of protons across the outer mitochondrial membrane down their concentration gradient.
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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
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Through the priming reactions
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Through the production of glyceraldehyde-3-phosphate
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By substrate-level phosphorylation
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As a result of the reduction of NAD+ to NADH
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By oxidative phosphorylation
Pregunta 9
Pregunta
Which of the following is a correct definition of catabolism?
Respuesta
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set of chemical reactions that occur in living organisms in order to maintain life
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set of metabolic pathways which breakdown molecules into smaller units and release energy
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set of metabolic pathways that construct molecules from smaller units
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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
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Electron Transport Chain,Pyruvate oxidation, Citric Acid Cycle, Glycolysis, Chemiosmosis
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Glycolysis, Pyruvate oxidation, Citric Acid Cycle, Electron Transport Chain, Chemiosmosis
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Glycolysis, Electron Transport Chain, Citric Acid Cycle,Pyruvate oxidation, Chemiosmosis
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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
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Transformed, Transformed
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Oxidised, Oxidised
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Reduced, Reduced
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Oxidised, Reduced
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Reduced, Oxidised
Pregunta 12
Pregunta
What is the goal of cellular respiration?
Respuesta
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To use ATP
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To release ATP
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To conserve ATP
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To produce ATP
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To transform ATP
Pregunta 13
Pregunta
Which step of which process is rate limiting?
Respuesta
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3, Glycolysis
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7, Citric Acid Cycle
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6, Glycolysis
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4, Electron Transport Chain
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2, Chemiosmosis
Pregunta 14
Pregunta
Pyruvate oxidation moves pyruvate from where to where?
Respuesta
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Mitochondria, Cytoplasm
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Matrix of Mitochondria, Lumen of Mitochindria
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Cytoplasm, Extracellular fluid
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Cytoplasm, Mitochondria
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Pyruvate oxidation doesn't move pyruvate anywhere
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