front 1 Which of the following statements concerning cellular metabolism is FALSE? | back 1 Macromolecules are converted into cell structures via catabolism |
front 2 Anabolic reactions may be characterized as | back 2 forming large molecules from smaller molecules |
front 3 Which of the following statements concerning reduction reactions is FALSE? | back 3 An electron acceptor becomes more positively charged |
front 4 The molecule that an enzyme acts upon is known as its | back 4 Substrate |
front 5 Which of the following statements concerning enzymes is FALSE? | back 5 They always function best at 37* C. |
front 6 Sulfanilamide is an antimicrobial drug that mimics the shape of an important substrate for a particular bacterial enzyme, thereby inhibiting the enzyme. This type of inhibition is known as ? | back 6 competitive inhibition |
front 7 Which of the following produces NADPH? | back 7 both the pentose phosphate and Entner-Doudoroff pathways |
front 8 Which of the following statements concerning glycolysis is TRUE? | back 8 If both requires the input of ATP and produces ATP |
front 9 Which of the following is required for holoenzyme function? | back 9 a coenzyme |
front 10 Pyruvic acid is a product of | back 10 both glycolysis and the Entner-Doudoroff pathway |
front 11 All of the following are forms of oxidation EXCEPT | back 11 substrate level phosphorylation |
front 12 Which of the following can be the final electron acceptor in anaerobic respiration in bacteria? | back 12 both nitrate and sulfate |
front 13 Which of the following is a non-protein carrier found in some electron transport chains? | back 13 ubiquinones |
front 14 A catabolic process which occurs in eukaryotic mitochondria is | back 14 beta-oxidation |
front 15 Which of the following is a by-product of the catabolism of proteins? | back 15 ammonia |
front 16 What is the purpose of the light-dependent reactions of photosynthesis? | back 16 production of ATP and NADH |
front 17 Which of the following is/are common to chemiosmosis and the light dependent reactions of photosynthesis? | back 17 both electron transport and a protein gradient |
front 18 Which of the following is a fermentation product useful in the manufacture of cheese? | back 18 lactic acid |
front 19 How many ATP molecules can theoretically be produced from the NADH generated by the catabolism of a molecule of glucose during aerobic respiration? | back 19 30 |
front 20 The various types of chlorophyll differ in the | back 20 wavelengths of light they absorb |
front 21 Photosystems are assembled in | back 21 thylakoids |
front 22 Beta oxidation of fatty acids produces a substrate of the | back 22 Krebs Cycle |
front 23 Which of the following is associated with the Calvin Benson cycle? | back 23 RuBP |
front 24 What is the major product of the Calvin Benson cycle that can then be used to form glucose? | back 24 glyceraldehyde 3-phosphate |
front 25 Chemical reactions that can proceed toward either anabolism or catabolism are called? | back 25 amphibolic |
front 26 If a cell reverses the process of beta-oxidation, which of the following molecules will it make? | back 26 fatty acids |
front 27 When a cell forms an amino acid by adding an amine group derived from ammonia to a precursor metabolite, this process is called? | back 27 amination |
front 28 The conversion of amino acids to carbohydrates is an example of | back 28 gluconeogenesis |
front 29 All of the following are aspects of a cell's ability to regulate its metabolism EXCEPT | back 29 use of the same coenzymes for anabolic and catabolic reactions that share substrate molecules |
front 30 The metabolic processes called fermentation | back 30 use an organic molecule as a final electron acceptor |
front 31 Which of the following is TRUE concerning the structure and function of enzymes? | back 31 After an enzyme has catalyzed a reaction, it resumes its original shape and can interact with a new substrate molecule. |
front 32 Light energy is used to fuel the assembly of carbon dioxide and water into carbohydrates in the process known as | back 32 photosynthesis |
front 33 Where is the majority of ATP generated in most eukaryotic cells? | back 33 in the mitochondrial matrix |
front 34 The conversion of pyruvic acid to acetyl-CoA can be described as ______, because a molecule of CO2 is produced as a by product. | back 34 decarboxylation |
front 35 Although glycolysis requires an input of ATP, this pathway results in a net gain of two ATP; therefore it is an ______ pathway | back 35 exergonic |
front 36 Enzymes known as lyases participate in _____ reactions, | back 36 catabolic |
front 37 Isomerases catalyze reactions in which | back 37 atoms in biomolecules are rearranged. |
front 38 During the synthesis of acetyl-CoA from pyruvic acid, ______ is produced. | back 38 NADH |
front 39 During reactions catalyzed by oxidoreductases an electron donor is | back 39 oxidized |
front 40 Hydrolases are generally involved in _______ reactions. | back 40 catabolic |
front 41 Reactions involving ligases are typically _____ reactions. | back 41 anabolic |
front 42 Substrate level phosphorylation occurs during the _____ stages of glycolysis. | back 42 energy investment and energy conservation |
front 43 The production of NADH takes place during the _______ stage of glycolysis. | back 43 energy-conservation |
front 44 Glycolysis begins with an ________ stage. | back 44 energy-investment |
front 45 Identify the processes of glucose metabolism represented in Figure 5-1. | back 45 A= glycolysis, B= fermentation, C= Krebs cycle, D= electron transport chain |
front 46 Which of the following products of glucose catabolism is a substrate for fatty acid synthesis? | back 46 acetly-CoA |
front 47 The conversion of phosphoenol pyruvic acid (PEP) to pyruvic acid results in the production of an ATP. This reaction is an example of (substrate-level /oxidative) phosphorylation. | back 47 substrate-level |
front 48 Another term for a protein catalyst is an (enzyme/ ribozyme). | back 48 enzyme |
front 49 A (oxidation/ reduction/ transport) reaction is one in which a molecule accepts an electron. | back 49 reduction |
front 50 The (activation / inhibition/ saturation) point of an enzyme is reached when all active sites have bound substrate molecules. | back 50 saturation |
front 51 When a noncompetitive inhibitor molecule binds to an (active/ allosteric) site on an enzyme, the shape of the active site changes so that the substrate molecules can no longer bind. | back 51 allosteric |
front 52 During glycolysis, glucose is converted to (pyruvic/ acetic/ lactic) acid, a molecule that can be uses in either fermentation or respiration pathways. | back 52 Pyruvic |
front 53 Electrons are transferred in the Krebs cycle in the form of (oxygen/ hydrogen) atoms to NAD+ and FAD. | back 53 hydrogen |
front 54 The purpose of the electron transport is to create a proton (concentration/ gradient/ pump) across a membrane that can then be used to make ATP. | back 54 gradient |
front 55 Anaerobic respiration involves the use of molecules other than oxygen as the final electron (acceptor/ donor) in an election transport chain. | back 55 acceptor |
front 56 Laboratory fermentation tests often include a pH indicator because many bacteria produce (CO2/ bases/ acids) as they ferment carbohydrates. | back 56 acids |
front 57 The (transferases/ transaminases/ deaminases) generate amino acids from carbohydrate precursors and glutamic acid. | back 57 transaminases |
front 58 A (photosystem/ thylakoid/ grana) is a collection of pigments such as chlorophyll that are used to absorb light in the light-dependent reactions of photosynthesis. | back 58 photosystem |
front 59 Waste products such as sulfur are produced by (oxygenic/ anoxygenic/ aerobic) photosynthetic bacteria as they obtain electrons for noncyclic photophosphorylation. | back 59 anoxygenic |
front 60 Enzymes increase the rate of reaction by lowering the (activation/ reaction) energy. | back 60 activation |
front 61 Significant amounts of the NADPH required for the Calvin-Benson cycle are produced during the (cyclic/ noncyclic) photophosphorylation reactions of photosynthesis. | back 61 noncyclic |
front 62 Only photosystem I is required for (cyclic/ noncyclic) photophosphorylation to occur. | back 62 Cyclic |