Solved by a verified expert:In which of the following steps of glucose metabolism is the greatest number of ATP molecules produced?Question 4 options:The Citric Acid CycleGlycolysisChemiosmosisAlcohol FermentationSaveQuestion 5 (5 points)Where does glycolysis take place in eukaryotic cells?Question 5 options:cytoplasmmitochondrial matrixmitochondrial inner membranechloroplastPlant cells produce one molecule of O2 ____.Question 6 options:by splitting carbon dioxide.by splitting two molecules of water.during cellular respiration.by breaking down glucose.SaveQuestion 7 (5 points)Plants manufacture glucose _______Question 7 options:for exclusive use by animals.to function as the beginning of more complex molecules.as a by-product produced as the plant manufactures oxygen.during cellular respiration.SaveQuestion 8 (5 points)CO2 + H2O + light energy –> C6H12O6 + O2In the chemical reaction above, what does C6H12O6represent?Question 8 options:A water moleculeA chlorophyll pigmentAn oxygen moleculeA simple carbohydrateSaveQuestion 9 (5 points)In which reaction is CO2 required?Question 9 options:The light reactionNeither the light reaction nor the Calvin cycle.The Calvin cycleIn both the light reaction and the Calvin cyclePlant cells ______.Question 10 options:do not have chloroplasts because their mitochondria meet their energy needs.use carbon dioxide but do not use oxygen.have both chloroplasts and mitochondria.do not have mitochondria because their chloroplasts meet their energy needs.SaveQuestion 11 (5 points)You are playing a long tennis match and your muscles begin to switch to anaerobic respiration. Which of the following is NOT true?Question 11 options:Your cells start converting NAD+ to NADH.Lactic acid is produced.There is a lack of oxygen in your muscle cells.ATP production declines.In fermentation,Question 12 options:NADH is producedO2 is producedNADP+ is produced.O2 is used.SaveQuestion 13 (5 points)According to the first law of thermodynamics, the total amount of energy in the universe ___________.Question 13 options:is always decreasingis constantvaries up and downis always increasingSaveQuestion 14 (5 points)How do cells use the ATP cycle shown in the figure above?Question 14 options:Cells use the cycle primarily to generate heat.Cells use the cycle to generate or consume water molecules as needed.Cells use the cycle to recycle energy released by ATP hydrolysis.Cells use the cycle to recycle ADP and phosphate.Question 15 (5 points)Where are the proteins of the electron transport chain located?Question 15 options:Mitochondrial matrixMitochondrial outer membraneCytosolMitochondrial inner membraneSaveQuestion 16 (5 points)Energy that is not converted to useful energy (ability to do work) is usually given off as____. Question 16 options:heat light electricity radioactivity SaveQuestion 17 (5 points)Energy ______Question 17 options:cannot be produced by fungi and heterotrophic organisms.involves ATP in living organisms.is the ability to do work.usage is governed by the laws of thermodynamics.all of theseQuestion 18 (5 points)Why is adenosine triphosphate (ATP) important in cells?Question 18 options:It is assembled into long chains that make up cell membranes.It accelerates diffusion.It stores energy in an easily accessible form that can be used to do work.It acts as an enzyme speeding up chemical reactions.SaveQuestion 19 (5 points)Why are enzymes important to humans?Question 19 options:Because they are proteins.Because they can evade the laws of thermodynamics.Because they allow reactions to occur at body temperature.Because they increase body temperature.SaveQuestion 20 (5 points)Which of the following statements is true?Question 20 options:An enzyme’s function depends on its three-dimensional shape.Enzymes typically work on a broad range of substrates.Enzymes are used up in chemical reactions.Enzymes emerge changed from the reactions they catalyze.
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