One molecule of glucose is broken into two molecules of which of the following?
Which of the following is a measure of disorder?Conservation of energyEntropyRespirationKinetic energyPotential energyQuestion2 of 50Glucose molecules provide energy to power the swimming motion of sperm. In this example what type of energy transformation is taking place?kinetic energy is transformed into potential energychemical energy is transformed into potential energykinetic energy is transformed into chemical energychemical energy is transformed into kinetic energynone of the aboveQuestion3 of 50Which of the following directly provides energy for cellular work?FatATPDNASucroseC6H12O6Question4 of 50Energy is transferred from ATP to other molecules by transferring which of the following?heat unitadenosinephosphate groupphotonspringQuestion5 of 50What is the name for specialized proteins that cause metabolic reactions to proceed at a faster rate than they normally would occur?EnzymesFatty AcidsAmino AcidsPolysaccharidesNucleic AcidsQuestion6 of 50What does an enzyme’s function depend on?sizeweighttemperatureshapepHQuestion7 of 50What is the name for the region of an enzyme to which a substrate binds?enzymaticsubstrateactivedenaturedconformationalQuestion8 of 50What is the name for substances that plug up an enzyme’s active site?induced fit factorsenzyme productsenzyme substratesreactantsenzyme inhibitorsQuestion9 of 50Diffusion is an example of which of the following?active transportendocytosisexocytosispassive transportphagocytosisQuestion10 of 50Which of the following is the best description of osmosis?EndocytosisActive transport of substances against a concentration gradient.The diffusion of nonpolar molecules.The diffusion of a solute.The movement of water across a selectively permeable membrane.Question11 of 50Which of the following statements describes the movement of water as a result of osmosis?Movement to the side with lower water concentration.Movement to the side with lower solute concentration.No movement across the cell membrane.Equal movement in both directions across the membrane.Movement to the side with higher water concentration.Question12 of 50Which of the following statements is true about diffusion?It is a process that only occurs at the cellular level.It occurs when particles spread from an area of lesser concentration to an area of higher concentration.It requires an input of energy.It proceeds until equilibrium is reached.It is the result of potential energy from atoms.Question13 of 50Which of the following will occur to a plant cell if it is placed in a hypotonic solution?it will pump out excess waterit will undergo plasmolysisit will swell (become turgid)it will shrinkit will burstQuestion14 of 50Which of the following processes results in the net movement of a substance into a cell when the substance is more concentrated INSIDE the cell than OUTSIDE the cell?PlasmolysisOsmosisFacilitated diffusionActive transportDiffusionQuestion15 of 50Which of the following statements is TRUE about active transport?Solutes are moved against their concentration gradient.It can involve the transport of ions.The cell must expend energy.ATP is used as an energy source.all of the aboveQuestion16 of 50What is the process called when a white blood cell engulf a bacterium?osmosisdiffusionreceptor-mediated endocytosisphagocytosispinocytosisQuestion17 of 50Which of the following is the correct equation for photosynthesis?6 CO2 + 6 H2O C6H12O6 + 6 O26 O2 + 6 H2O C6H12O6 + 6 CO26 CO2 + 6 O2 C6H12O6 + 6 H2O6 CO2 + 6 H2O + 6 O2 C6H12O6C6H12O6 + 6 O2 6 CO2 + 6 H2OQuestion18 of 50The products of photosynthesis serve as the reactants for which of the following processes?global warmingcell divisionpH balancenuclear fusioncellular respirationQuestion19 of 50Which of the following absorbs light during photosynthesis?chloroplastvacuolenucleusmitochondrionrough endoplasmic reticulumQuestion20 of 50Through what structure(s) do plants obtain most of their water?RootsInterior cellsStemsLeavesStomataQuestion21 of 50What name is given to the membranous sacs found within a chloroplast?VesiclesThylakoidsStromaReaction centersCristaeQuestion22 of 50Which of the following converts light energy into chemical energy (sugars) through the process of photosynthesis?flagellabondschloroplastsmitochondriaribosomesQuestion23 of 50The light reactions of photosynthesis convert ______ energy to ______ energy.ATP; NADPHchemical; electricalsolar; chemicalelectrical; solarproton gradient; chemicalQuestion24 of 50What is the role of NADP+ in photosynthesis?It is an electron carrier.It captures sunlight.It fixes water.It splits water.It reflects sunlight.Question25 of 50What is the function of the Calvin cycle?To oxidize glucose.To make sugarTo capture sunlight.To produce carbon dioxide (COTo produce carbon dioxide (CO2)To split water.Question26 of 50Which of the following is an end product of photosynthesis?sunlightheliumglucosewaterCarbon dioxide (CO2)Question27 of 50Which of the following is a true statement regarding a green leaf?The leaf is green because the pigments are excited.The leaf is green because the pigments absorb wavelengths of light in the green spectrum.The leaf is green because the green wavelengths have been used and discarded by the pigmented object.The leaf is green because they have interacted with sunlight.The leaf is green because the pigments reflect wavelengths of light in the green spectrum.Question28 of 50If a plant appears blue what wavelength of light is being reflected?BlueOrangeYellowGreenRedQuestion29 of 50What name is given to a fixed quantity of light energy?PhotonSpectrumPhaserQuantumWavelengthQuestion30 of 50What is one reason why plants have accessory pigment molecules like chlorophyll b and carotenoids?To absorb energy in the electromagnetic spectrum that chlorophyll a cannotchlorophyll a gets burnt out by intense summer sunlightplants cannot make enough chlorophyll aTo reflect more energyTo give them different colorsQuestion31 of 50What compound is found at the reaction center of a photosystem?CarotenoidsChlorophyll cChlorophyll aChlorophyll bPhycobilinsQuestion32 of 50Which of the following is true about chlorophyll b?It transfers light energy to chlorophyll a.absorbs green light.It reverses the affects of chlorophyll a.participates directly in the light reactions.All of the above.Question33 of 50When a molecule absorbs a photon one of its electrons is raised to which state?energetichigherexcitedgroundquantumQuestion34 of 50Which of the following is found in both cellular respiration and in the light reactions of photosynthesis?electron transport chainCalvin cyclefermentationglycolysiscitric acid cycleQuestion35 of 50What are the end products of cellular respiration?water H2O onlycarbon dioxide (CO2) onlywater (H2O) and glucose (C6H12O6)glucose (C6H12O6) onlywater (H2O) and carbon dioxide (CO2)Question36 of 50Which of these equations describes aerobic cellular respiration?Glucose + lactose galactose + waterEnergy + carbon dioxide + water glucose + oxygen + waterGlucose lactic acid + energyGlucose + oxygen carbon dioxide + water + energyGlucose ethyl alcohol + carbon dioxide + energyQuestion37 of 50Which of the following is required in an aerobic process?ATPcarbohydratesoxygenlightcarbon dioxideQuestion38 of 50Which of the following energy pathways is found in every living organism?glycolysiscitric acid cyclelactic acid fermentationalcoholic fermentationoxidative phosphorylationQuestion39 of 50Which of the following is the main metabolic pathway in animals?anaerobic respirationlactic acid fermentationalcoholic fermentationaerobic respirationphotosynthesisQuestion40 of 50Which of the following is the correct sequence of stages in cellular respiration?Citric acid cycle electron transport glycolysisCitric acid cycle glycolysis electron transportGlycolysis citric acid cycle electron transportElectron transport citric acid cycle glycolysisElectron transport glycolysis citric acid cycleQuestion41 of 50One molecule of glucose is broken into two molecules of which of the following?pyruvic acidlactic acidO2ethyl alcoholNAD+Question42 of 50ATP is produced duringglycolysis.the electron transport chain.citric acid cycleA and B above.A B and C above.Question43 of 50Which stage of cellular respiration yields the greatest number of ATP molecules?fermentationelectron transportthe number is equal for all three stagesglycolysiscitric acid cycleQuestion44 of 50What occurs in redox reactions?cells reproduceenzymes catalyze reactionsmaterials move through the plasma membraneelectrons are lost from one substance and added to another substanceisotopes formQuestion45 of 50Where in the cell do the citric acid cycle and electron transport take place?ribosomeschloroplastscytoplasmmitochondrianucleusQuestion46 of 50Aerobic cellular respiration generates how many molecules of ______ ATP from one molecule of glucose?1238621Question47 of 50The term anaerobic means ______.without CO2without bacteriawithout ATPwithout O2with O2Question48 of 50How many molecules of ATP are produced from 1 molecule of glucose during anaerobic respiration?43810236Question49 of 50Which of the following processes occurs under anaerobic conditions?The electron transport chainthe citric acid cyclethe Krebs cyclefermentationConversion of pyruvic acid to acetyl CoAQuestion50 of 50What product does yeast produce under anaerobic conditions?Ethyl alcoholCreatineLactic acidGlucosaminePyruvic acid
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