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