Chat with us, powered by LiveChat 1) Which of the following is an example of oxidation?a. The pumping of protons i | WriteMoh

1) Which of the following is an example of oxidation?a. The pumping of protons i

1) Which of the following is an example of oxidation?a. The pumping of protons into the mitochondrial intermembrane space.b. The gradual loss of energy along the electron transport chain.c. The conversion of NADH to NAD+.d. The conversion of O2 into water.e. All of the above.2) NAD is considered a coenzyme (see table 8.2, p. 156) in glycolysis because:a. it can replace enzymes of the glycolytic pathway.b. it can transition between oxidized and reduced states.c. it lowers the energy of activation of some of the reactions.d. it serves as an electron carrier when coupled to an enzyme mediated reaction.e. it conserves the free energy liberated from some of the reactions.3) Which of the following is (are) true of the electron transport chain?a. Electrons are received from NADH and FADH2.b. Electrons are passed from donor to recipient carrier molecules in a series ofoxidation-reduction reactions.c. Oxygen is the terminal electron acceptor.d. Most of the enzymes are part of the inner mitochondrial membrane.e. All of the above.4) ATP can be used to drive non-spontaneous reactions because:a. non-spontaneous reactions are exergonic.b. the breakdown of ATP to ADP is exergonic.c. the breakdown of ATP to ADP is endergonic.d. when ATP is broken down to ADP, Pi is released.e. ADP and Pi possess more free energy than ATP.5) A high ADP:ATP ratio in cells influences glucose breakdown in cells. How does itdo this?a. it exercises allosteric regulation of ATP synthase.b. it activates enzymes in the glycolytic pathway.c. it inactivates enzymes in the citric acid cycle.d. it promotes fermentation.e. it accelerates transfer of electrons in the electron transport chain.6) The removal of two hydrogen atoms from FADH2 to form FAD is considered anoxidation reaction because:a. the two hydrogen atoms join with oxygen to form a water molecule.b. hydrogen atoms are carriers of electrons.c. this reaction occurs in the citric acid cycle.d. removal of hydrogen atoms increases the relatively amount of oxygen in FAD.e. losing two hydrogen atoms prepares FAD to accept electrons.7) What is the fate of a transferable electron in an NADH molecule?a. it is donated to an NAD+ molecule.b. it is donated to an oxidizing agent.c. it is donated to a reducing agent.d. it is donated to a hydrogen atom.e. it is donated to a proton.8) At the end of the respiratory chain:a. oxygen is oxidized to water.b. ATP is produced.c. glucose is completely combusted into water.d. there is a net loss of electrons.e. None of the above.1) Which of the following is an example of oxidation?a. The pumping of protons into the mitochondrial intermembrane space.b. The gradual loss of energy along the electron transport chain.c. The conversion of NADH to NAD+.d. The conversion of O2 into water.e. All of the above.2) NAD is considered a coenzyme (see table 8.2, p. 156) in glycolysis because:a. it can replace enzymes of the glycolytic pathway.b. it can transition between oxidized and reduced states.c. it lowers the energy of activation of some of the reactions.d. it serves as an electron carrier when coupled to an enzyme mediated reaction.e. it conserves the free energy liberated from some of the reactions.3) Which of the following is (are) true of the electron transport chain?a. Electrons are received from NADH and FADH2.b. Electrons are passed from donor to recipient carrier molecules in a series ofoxidation-reduction reactions.c. Oxygen is the terminal electron acceptor.d. Most of the enzymes are part of the inner mitochondrial membrane.e. All of the above.4) ATP can be used to drive non-spontaneous reactions because:a. non-spontaneous reactions are exergonic.b. the breakdown of ATP to ADP is exergonic.c. the breakdown of ATP to ADP is endergonic.d. when ATP is broken down to ADP, Pi is released.e. ADP and Pi possess more free energy than ATP.5) A high ADP:ATP ratio in cells influences glucose breakdown in cells. How does itdo this?a. it exercises allosteric regulation of ATP synthase.b. it activates enzymes in the glycolytic pathway.c. it inactivates enzymes in the citric acid cycle.d. it promotes fermentation.e. it accelerates transfer of electrons in the electron transport chain.6) The removal of two hydrogen atoms from FADH2 to form FAD is considered anoxidation reaction because:a. the two hydrogen atoms join with oxygen to form a water molecule.b. hydrogen atoms are carriers of electrons.c. this reaction occurs in the citric acid cycle.d. removal of hydrogen atoms increases the relatively amount of oxygen in FAD.e. losing two hydrogen atoms prepares FAD to accept electrons.7) What is the fate of a transferable electron in an NADH molecule?a. it is donated to an NAD+ molecule.b. it is donated to an oxidizing agent.c. it is donated to a reducing agent.d. it is donated to a hydrogen atom.e. it is donated to a proton.8) At the end of the respiratory chain:a. oxygen is oxidized to water.b. ATP is produced.c. glucose is completely combusted into water.d. there is a net loss of electrons.e. None of the above.

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