The effect of high levels of ADP is to_inv_cellular respiration. a. increase the activity of specific enzymes b. decrease the activity of specific enzymes c. have no effect on the activity of specific enzymes d. slow down the pathway
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The effect of high levels of ADP is to_inv_cellular respiration.
a. increase the activity of specific enzymes
b. decrease the activity of specific enzymes
c. have no effect on the activity of specific enzymes
d. slow down the pathway
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- 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.What effect will increasing the number of c subunits in ATP synthase have on the P:O ratio? A. It will increase for both NADH and FADH2. B. It will increase for NADH and decrease for FADH2. C. It will decrease for NADH and increase for FADH2. D. It will decrease for both NADH and FADH2. E. It will remain unchanged for both NADH and FADH2.Why is it important to regenerate NAD+ during fermentation?a. It helps maintain the reactions of glycolysis.b. So that it can transfer an electron to the electron transport chainc. To maintain the concentration of pyruvate in a celld. To produce alcohol or lactic acid for 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 chainWhy are electron carriers (NAD+/NADH and FAD/FADH2) so important in the process of cellular respiration? A)NADH and FADH2 are major components of the ETC, so without them, there would be no ETC in the cell. B)They deliver electrons to the ETC, which in turn sets up chemiosmosis, where most of the ATP is generated. C)They separate the electrons from the protons so that the protons can be moved out of the mitochondrion. D)The electrons that they carry are able to directly phosphorylate ADP in order to generate the bulk of ATP in the cell. E) They transport protons across the mitochondrial membrane. 14.Glycolysis is a degradative pathway of glucose.(a). Out of the four kinase enzymes, indicate which are reversible and which areirreversible reactions.(b). Out of the four kinase enzyme reactions, indicate which ones used ATP andwhich ones produced ATP.
- Cells utilize the energy ot AlP to do usetul work, such as power muscle contractions. During cellular activities like muscle contractions, ATP is converted into ADP and a phosphate group. What is happening to energy in this process of conversion? A:Energy is being stored. B:Energy is being released. C:Energy is being destroyed. D:Energy is being created.Which of the following pathways requires molecular oxygen (O2)? a. aerobic respiration b. lactate formation c. alcoholic fermentation d. photosynthesisWhy is cellular respiration important? a) It breaks down carbon dioxide, which is toxic to cells. b) It reduces glucose c) It produces gas, which is essential to cell functions. d) It generates chemical gradients, which have potential energy e) it generates ATP, which cells can use to do work
- Coupled reactionsa. are endergonic overall.b. both synthesize and break down ATP.c. are catalyzed by the same enzyme.d. end with reactants that contain more energy than theirproducts.Which feature of anaerobic and aerobic respiration is different? Select one: a.Use of electron transport system b.Use of the Electron Donor c.Use of proton motive force d.None of the Above e.Use of the Electron AcceptorThe last part of cellular respiration is called oxidative phosphorylation. We use the term oxidative here because… Select one: a. No real reason but it sounded cool. b. oxidation refers to the removal of electrons from NADH or FADH2 (i.e. this is all redox). c. We are eukaryotes and use oxygen to make ATP. d. oxygen is the final electron acceptor