When carbon dioxide is produced in aerobic respiration? ) when oxygen is used as the final electron acceptor in oxidative phosphoryla 2) glycolysis 5) during substrate level phosphorylation ) Krebs cycle 5) when hydrogen is pumped across the inner membrane of the mitochondria

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Which of the following is NOT found in BOTH aerobic respiration and photosynthesis pathways?   a) ATP b) Electron transport proteins c) NADPH d) Chemiosmosis e) ATP Synthase

A eukaryote cell typically has enough available ATP to meet its needs for about 90 seconds. What would cause an active cell to exhaust its ATP supply so quickly? A) regular rest is a cellular requirement. B) Photosynthesis used up all ATP. C) ATP is transported into other cells. D) Too much glucose takes over the cell, E) the cell runs out of or uses up the available O2

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Concerning the use of pyruvate when ratio of NADH/NAD+ is low, what is the fate of the carbon labeled in pyruvate when metabolized under these conditions? a) Production of glucose b) Oxidation to CO2 via the TCA cycle c) Conversion to pyruvate to generate oxaloacetate to move electrons to the cytosol via the malate shuttle d) Pyruvate is never metabolized by the cell, instead pyruvate is converted to lactate and solely exported for the Cori cycle and dependent on the liver to recycle the carbon skeleton

During aerobic respiration, high energy electrons are taken from glucose and transferred to electron carriers. The cell then uses the energy from these electrons to: A) pump hydrogen ions across the inner mitochondrial membrane B) produce oxygen C) produce carbon dioxide D) make glucose E) reduce electron carriers

Which of the following statements is false regarding the electron donors in prokaryotic metabolism? A) O The use of organic compounds as electron donors is known as chemo-organotrophy. B) OLithotrophy refers to the use of inorganic molecules as electron sources. C) O Photolysis of water provides electrons to phototrophic organisms such as cyanobacteria. D) O Electrons can be obtained from inorganic chemicals such as H2S. E) O Oxygen can serve as an electron donor.

An important reaction that must occur in both fermentation and aerobic cellular respiration is A) the reduction of NADH to NAD+. B) the reduction of FAD+ to FADH2. C) the oxidation of NADH to NAD+.

how many net ATP molecules does the citric acid cycle generate in total? Consider both ATP generated directly by the citric acid cycle and ATP generated downstream in oxidative phosphorylation using other molecuies generated by the citric acid cycle For your answer, consider ATP and GTP to be equivalent A) 32 B) 20 C) 2 D) 10 E) 1