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This preview shows page 2 - 4 out of 11 pages. 4.The enzyme hexokinase catalyzes the conversion of glucose to glucose-6-phosphate,which is an important step in glycolysis. The reaction involves the transfer of aphosphate group from ATP to glucose. Either a glucose molecule or a water moleculecan fit in the active site of hexokinase. The presence of a water molecule in hexokinase’sactive site would result in the hydrolysis of ATP to ADP instead of the conversion ofglucose to glucose-6-phosphate. Which of the following statements best helps explainthe reaction specificity of hexokinase?A.Both glucose and water are polar molecules that form favorable interactionswith charged and polar amino acid side chains in hexokinase’s active site.B.Both glucose and water have oxygen atoms that can form covalent bonds withthe phosphorus atoms of phosphate groups.C.Glucose is an energy-rich organic molecule that can be broken down by glycolysisto produce ATP, whereas water is an inorganic molecule.D.Glucose has the right shape and charge to cause hexokinase to undergo astructural change needed for catalysis, whereas water does not. 5.A researcher claims that the synthesis of ATP from ADP and inorganic phosphate (Pi) isessential to cellular function. Which of the following statements best helps justify theresearcher’s claim? Get answer to your question and much more environment.D.ATP synthase is a mitochondrial enzyme that catalyzes the conversion of ADPand Pito ATP.6.Muscle contraction depends on ATP hydrolysis. During periods of intense exercise,muscle cells rely on the ATP supplied by three metabolic pathways: glycolysis,mitochondrial respiration, and the phosphagen system. The figure below shows therates at which the three metabolic pathways produce ATP following the start of anintense period of exercise.Which of the following correctly uses the data to justify the claim that the phosphagensystem is an immediate, short-term source of ATP for muscle cells? Get answer to your question and much more Upload your study docs or become a Course Hero member to access this document Upload your study docs or become a Course Hero member to access this document End of preview. Want to read all 11 pages? Upload your study docs or become a Course Hero member to access this document Which of the following statements correctly explains the observed effect of the acetylcholine concentration on the rate of the enzyme catalyzed reaction?Which of the following statements correctly explains the observed effect of the acetylcholine concentration on the rate of the enzyme-catalyzed reaction? The active site of AChE is specific for acetylcholine, and only one substrate molecule can occupy the active site at a time.
Which of the following statements best justifies the inclusion of test tube V as a control experiment?Which of the following statements best justifies the inclusion of test tube V as a control in the experiment? It will show the color change that occurs in the absence of enzyme activity.
Which of the following statements best justifies the inclusion of test tubes three and seven in the experiment?Which of the following statements best justifies the inclusion of test tubes 3 and 7 in the experiment? They will show whether the isolated cellular contents have enzymatic activity.
Which of the following best justifies the claim that alleles that may be adaptive?Which of the following best justifies the claim that alleles that may be adaptive in one type of environment can be deleterious in another because of different selective pressures? Light-colored mice are significantly more susceptible to predation by owls in habitats with lava rocks than in habitats with sandy soil.
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Which of the following correctly uses the data to justify the claim that the Phosphagen system is an immediate short term source of?
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