Navigation » List of Schools » Prince George Community College » Biology » Bio 2010 – Microbiology » Spring 2023 » Lecture Exam 3
Below are the questions for the exam with the choices of answers:
Question #1
A a lipid
B an amino acid
C a sugar
D a protein
Question #2
A AUGC
B UTGC
C UAGC
D TAGC
Question #3
A words of a language
B stars in the universe
C people on the bus
D MnMs in a bag of candy
Question #4
A a sequence of amino acids in a protein
B a sequence of DNA nucleotides that codes for a single protein
C the entire DNA molecule
D a single nucleotide
Question #5
A Several different codons can specify the same amino acid.
B Some amino acids have no link to a codon.
C Each amino acid is specified by only one codon.
D Each codon specifies a different amino acid.
Question #6
A DNA ligase
B DNA gyrase
C DNA polymerase
D DNA helicase
Question #7
A DNA contains the sugar deoxyribose.
B DNA contains the nitrogenous bases A, C, G, and U.
C the two strands of a DNA molecule are antiparallel to each other.
D the two strands of a DNA molecule are held together by hydrogen bonds.
Question #8
A two types
B three types
C one type
D four types
Question #9
A diffusion
B kinetic charge attraction
C dNTP’ s
D osmosis
E electrical charge attraction
Question #10
A missense
B nonsense
C Deletion
D silent
Question #11
A creates a new protein
B changes one single amino acid
C deletes the entire protein
D eliminates the start codon
E introduces a stop codon
Question #12
A point mutation
B deletion
C insertion
D silent
Question #13
A frameshift
B silent
C missense
D nonsense
Question #14
A conjugation
B transformation
C vertical gene transfer
D transduction
Question #15
A DNA
B proteins
C RNA
D enzymes
Question #16
A transduction
B vertical gene transfer
C horizontal gene transfer
D bacterial transformation
Question #17
A gene transfer
B transfer of gene
C vertical gene transfer
D horizontal gene transfer
Question #18
A glucose binds to the repressor
B lactose binds to the repressor
C the repressor binds to the operator
D lactose binds to the operator
Question #19
A the cyclic AMP and lactose levels are both high within the cell.
B there is more glucose in the cell than lactose.
C the cyclic AMP levels are low.
D there is glucose but no lactose in the cell.
E the cAMP level is high and the lactose level is low.
Question #20
A starts when the pathways product is present.
B does not result in the production of enzymes.
C stops when the pathway’s product is present.
D occurs continuously in the cell.
E starts when the pathway’s substrate is present.
Question #21
A repressor proteins block transcription by binding to operator sequences.
B small-molecule sensors usually bind DNA and change its 3D structure allosterically.
C enhancers are commonly used to regulate transcription.
D activator proteins bind near promoters and increase efficiency of translation.
E genes with related functions are often grouped together and have a single start codon.
Question #22
A protein synthesis
B translation
C replication
D transcription
Question #23
A phosphoglyceraldehyde; ATP
B phosphoglyceraldehyde; NADP & H+
C ribulose 1,5 â bisphosphate (RuBP); NADP+ & H+
D pyruvic acid; NADP+ & H+
Question #24
A both increase
B glucose increases and RuBP decreases
C RuBP increases and glucose decreases
D both decrease
Question #25
A carbon
B carbon dioxide
C oxygen
D water
Question #26
A ATP
B NADPH
C phosphogyceric acid
D CO2
E Glucose
Question #27
A 2
B 8
C 4
D 0
E 6
Question #28
A oxaloacetic acid.
B citric acid.
C acetyl-CoA.
D none of these.
E NADH.
Question #29
A both cycles produce ATP
B both cycles have more than one chemical reaction
C both cycles can start and stop
D both cycles oxidize compounds
E both cycles recycle their final products
Question #30
A acetyl CoA
B phosphoglyceric acid
C oxaloacetic acid
D NAD+
E CO2
Question #31
A the bonds between the phosphate groups are very stable.
B the bonds between the phosphate groups are unstable.
C the three phosphate groups are strongly attracted to each other.
D the sugar in ATP has numerous carbon-hydrogen bonds.
Question #32
A oxidation of glucose is complete
B oxidation of glucose yields pyruvic acid
C oxidation of glucose yields NADH
D oxidation of glucose yields ATP
Question #33
A to use in the Electron Transport System
B to make less toxic final products
C to use in the transition reaction
D to make more toxic final products
E to use in the Kreb’s cycle
Question #34
A temperature
B pH
C oxygen levels
D glucose levels
Question #35
A enzymes active site is occupied by substrate
B enzymes active site is occupied by O2
C enzymes active site is occupied ATP
D enzymes active site is not occupied by anything
Question #36
A decreases the temperature
B gains an electron
C loses an electron
D increases the pH
Question #37
A free-energy content.
B activation energy.
C endothermic level.
D entropy.
E equilibrium point.
Question #38
A destroys substrates
B destroys products
C preserves existing chemical bonds
D breaks chemical bonds
Question #39
A pH
B temperature
C substrate concentration
D oxygen concentration
Question #40
A neither one attaches to any location on an enzyme
B both permanently attaches to the enzymes allosteric site
C both permanently attaches to the enzymes active site
D reversible temporarily attaches to the enzymes active site
Question #41
A The final electron acceptor is oxidized.
B NADH and FADH are oxidized.
C The electrons gain energy with each transfer in the chain.
D NADH and FADH are reduced.
Question #42
A Proton motive force from incoming H+ ions
B Proton motive force from income CO2
C Proton motive force from incoming O2
D Proton motive force from incoming ATP
Question #43
A the accumulation of water formed in respiration
B the movement of flagella
C the movement of water across a membrane
D a H+ electrochemical gradient formed across the plasma membrane
E ATP accumulation in the plasma membrane
Question #44
A 38
B 4
C 0
D 2
Question #45
A oxidative phosphorylation
B fermentation
C the transition reaction
D the Kreb’s cycle
E glycolysis
Question #46
A it is the final electron acceptor in the electron transport chain.
B it is important in creating oxaloacetic acid in the Krebs cycle.
C it provides the hydrogen nuclei needed to create a proton gradient outside of the cell
D it is needed for glycolysis, which begins the process of respiration in cells.