
Test 2 Review
Quiz by Amanda Wood
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20 questions
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- Q1Energy is stored long-term in the bonds of _____ and used short-term to perform work from a(n) _____ molecule.an anabolic molecule : catabolic moleculeATP : glucoseglucose : ATPa catabolic molecule : anabolic molecule30s
- Q2What is removed from pyruvate during its conversion into an acetyl group?B vitaminoxygenATPcarbon dioxide30s
- Q3What do the electrons added to NAD+ do?They energize the entry of the acetyl group into the citric acid cycle.They become part of a fermentation pathway.They go to another pathway for ATP production.They are converted to NADP.30s
- Q4A reducing chemical reaction ________.reduces the compound to a simpler formis a catabolic reactionadds an electron to the substrateremoves a hydrogen atom from the substrate30s
- Q5Which of the following analogies best describes the induced-fit model of enzyme-substrate binding?a hug between two peoplea key fitting into a lockthe fitting together of two jigsaw puzzle piecesa square peg fitting through the square hole and a round peg fitting through the round hole of a children’s toy30s
- Q6DNA replication involves unwinding two strands of parent DNA, copying each strand to synthesize complementary strands, and releasing the parent and daughter DNA. Which of the following accurately describes this process?This is both anabolic and catabolicThis is a catabolic processThis is an anabolic processThis is a metabolic process, but neither anabolic or catabolic30s
- Q7Enzymes are proteins that help increase the rate of chemical reactions inside cells. These proteins are composed of many simpler molecules called amino acids. Which of the following suggests that the shape of an enzyme determines the enzyme’s function?Enzymes are activated by neighboring molecules.Enzymes are specific to a substrate.Enzymes can be found in all life-forms.Enzymes can operate in a wide range of conditions.30s
- Q8Which statement accurately describes the role of key organelles in energy transfer?Energy is captured and stored in the nucleus and released in the chloroplast.Energy is captured and stored in the nucleus and released in the mitochondria.Energy is captured and stored in the mitochondria and released in the chloroplast.Energy is captured and stored in the chloroplast and released in the mitochondria.30s
- Q9Which of the following molecules is likely to have the most potential energy?ADPGlucoseATPSucrose30s
- Q10In which phase of the eukaryotic cell cycle is the genetic material duplicated?G2 phaseM phaseS phaseG1 phase30s
- Q11Students place a plant in a dark, windowless closet for two days. Which of these will help the plant maintain homeostasis?growing deeper rootslosing all of its leavesusing stored sugarsdecreasing stem size30s
- Q12Which of these must occur during S phase of the cell cycle so that two daughter cells can be produced during M phase?The cytoplasm must be separated.The chromosomes must be joined.The cell membrane must be expanded.The DNA must be replicated.30s
- Q13Proteins in eukaryotic cells which control the progression of cells through the cell cycle are –cyclinscytochromesrecyclinscytokines30s
- Q14The genetic code is the set of instructions that translates genetic material into proteins. This code defines how sequences of three nucleotides specify which amino acid will be added next during protein synthesis. Each sequence of three nucleotides is called —a DNA moleculea proteina mutagena codon30s
- Q15GTP or ATP is produced during the conversion of ________.malate into oxaloacetateisocitrate into α-ketoglutaratefumarate into malatesuccinyl CoA into succinate30s