Plants transform solar energy to chemical energy and storing it in glucose. This, in turn, is used by the mitochondria to produce ATP Majority of the ATP is generated by the electron transport chain (ETC) However, before ETC majority of the said energy from glucose is stored in which of the following molecule? a. acetyl-CoA b. pyruvate c. NADH d. NAD+

Plants transform solar energy to chemical energy and storing it in glucose. This, in turn, is used by the mitochondria to produce ATP Majority of the ATP is generated by the electron transport chain (ETC) However, before ETC majority of the said energy from glucose is stored in which of the following molecule? a. acetyl-CoA b. pyruvate c. NADH d. NAD+

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter7: Releasing Chemical Energy

Section: Chapter Questions

Problem 1SA: Is the following statement true or false? Unlike animals, which make many ATP by aerobic...

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During glycolysis, pyruvate oxidation, and the citric acid cycle, NADH is produced. The citric acid cycle also produces FADH2. What is the purpose of these molecules? a. to produce carbon dioxide to breathe out b. to produce oxygen that is needed for the electron transport chain c. to carry electrons to the electron transport chain d. to provide the ADP and phosphate that are needed to make ATP
Why is there a difference in the ATP that is being produced by the NADH molecule coming from Glycolysis which could be 4-6 for 2 NADH molecules? a.The conversion of reduction of NAD+ to NADH is a highly energetic process. b.Glycolysis uses 2 ATP for the production of NADH. c.NADH molecules from Glycolysis is not energetic enough to produce the 3 ATP. d.It will be dependent on the pathway that the NADH will be undergoing.
which of the following woudl decrease the number of atp molecules generated per nadh molecule in the electron transport chain? a. increasing the energy of the electrons nadh transfer to complex I b. reducing the number of protons required by ATP synthase to produce an ATP moelcule c. having nadh transfer its elections to complex III instead of complex I d. increasing the amount of oxygen available to the cell
The function of NAD+ and FADH+ is: A)To make sugar from carbon Dioxide B)To pump hydrogen ions across a membrane C)To capture and hold high energy electrons D)To turn the rotor of ATP Synthase E)To take low energy electrons from the electron transport chain
Which of the following statements is a lie?Select one:a.Specific enzymes in the electron transport chain are unaffected by feedback inhibition.b.Elevated levels of ADP will increase pathway activity in the electron transport chain.c.The rate of transport of electrons through the electron transport chain is regulated by feedback inhibition.
Why is the formation of ATP by ATP synthase referred to as oxidative phosphorylation? A. A phosphate is transferred from oxygen to ADP to form ATP B. Oxygen provides the mechanical energy that is used to create ATP from ADP C. Oxygen is the final electron acceptor in the electron transport chain, which creates the proton gradient necessary to power ATP synthase D. ADP combines with oxygen to form ATP
What causes the transfer of electrons through an electron transport chain? a. The initial "push" from NADH b. The increasing electronegatively of the carries c. protons moving across the membrane d. electron motive foce
Which of the following statements is TRUE of the electron transport chain (ETC)? A. The movement of electrons down the ETC drives the formation of a proton (H+) gradient. B. The movement of H+ ions through ATP synthase drives the transfer of electrons down the ETC. C. The movement of electrons down the ETC drives the movement of ADP and phosphate through ATP synthase. D. The movement of H+ ions across the inner membrane of the mitochondria drives the transfer of electrons down the ETC.
which statement is false? a. Electrons do not usually flow through the electron-transport chain to oxygen unless ADP is simultaneously phosphorylated to ATP. b. Oxidative phosphorylation requires a supply of NADH or other source of electrons at high potential, oxygen, and ADP. c. The rate of oxygen consumption by mitochondria increases markedly when ADP is added and then returns to its initial value when the added ADP has been converted into ATP. d. The most important factor in determining the rate of oxidative phosphorylation is the level of ADP and inorganic phosphate.
To reduce six molecules of carbon dioxide to glucose via photosynthesis, how many molecules of NADPH and ATP are required? a. 6 NADPH and 6 ATP b. 12 NADPH and 12 ATP c. 12 NADPH and 18 ATP d. 18 NADPH and 12 ATP e. 24 NADPH and 18 ATP
The link between electron transport and ATP synthesis a. is a high-energy intermediate like phosphoenol pyruvate. b. is the transfer of electrons to ATP synthase. c. is a proton gradient. d. depends on the absence of oxygen.
Which of the following is NOT true of the electron transport chain? a. It produces NADH, as a result of electrons being transferred from glucose to NAD+ b. End products include CO2, water, and pyruvate c. It allows for the controlled release of energy for ATP synthesis d. It is part of the oxidative phosphorylation process