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 protein
C an amino acid
D a lipid
Question #2
A AUGC
B TAGC
C UTGC
D UAGC
Question #3
A stars in the universe
B MnMs in a bag of candy
C people on the bus
D words of a language
Question #4
A the entire DNA molecule
B a sequence of amino acids in a protein
C a single nucleotide
D a sequence of DNA nucleotides that codes for a single protein
Question #5
A Some amino acids have no link to a codon.
B Each amino acid is specified by only one codon.
C Each codon specifies a different amino acid.
D Several different codons can specify the same amino acid.
Question #6
A DNA gyrase
B DNA ligase
C DNA polymerase
D DNA helicase
Question #7
A the two strands of a DNA molecule are held together by hydrogen bonds.
B the two strands of a DNA molecule are antiparallel to each other.
C DNA contains the nitrogenous bases A, C, G, and U.
D DNA contains the sugar deoxyribose.
Question #8
A three types
B two types
C one type
D four types
Question #9
A electrical charge attraction
B kinetic charge attraction
C dNTP’ s
D diffusion
E osmosis
Question #10
A nonsense
B Deletion
C silent
D missense
Question #11
A introduces a stop codon
B changes one single amino acid
C eliminates the start codon
D deletes the entire protein
E creates a new protein
Question #12
A point mutation
B silent
C insertion
D deletion
Question #13
A nonsense
B frameshift
C missense
D silent
Question #14
A vertical gene transfer
B transduction
C transformation
D conjugation
Question #15
A RNA
B proteins
C enzymes
D DNA
Question #16
A horizontal gene transfer
B vertical gene transfer
C bacterial transformation
D transduction
Question #17
A gene transfer
B vertical gene transfer
C horizontal gene transfer
D transfer of gene
Question #18
A glucose binds to the repressor
B lactose binds to the repressor
C lactose binds to the operator
D the repressor binds to the operator
Question #19
A there is glucose but no lactose in the cell.
B the cyclic AMP levels are low.
C the cyclic AMP and lactose levels are both high within the cell.
D the cAMP level is high and the lactose level is low.
E there is more glucose in the cell than lactose.
Question #20
A occurs continuously in the cell.
B starts when the pathway’s substrate is present.
C starts when the pathways product is present.
D does not result in the production of enzymes.
E stops when the pathway’s product is present.
Question #21
A activator proteins bind near promoters and increase efficiency of translation.
B genes with related functions are often grouped together and have a single start codon.
C enhancers are commonly used to regulate transcription.
D small-molecule sensors usually bind DNA and change its 3D structure allosterically.
E repressor proteins block transcription by binding to operator sequences.
Question #22
A replication
B translation
C protein synthesis
D transcription
Question #23
A pyruvic acid; NADP+ & H+
B phosphoglyceraldehyde; ATP
C ribulose 1,5 â bisphosphate (RuBP); NADP+ & H+
D phosphoglyceraldehyde; NADP & H+
Question #24
A both increase
B glucose increases and RuBP decreases
C both decrease
D RuBP increases and glucose decreases
Question #25
A water
B oxygen
C carbon
D carbon dioxide
Question #26
A Glucose
B NADPH
C CO2
D phosphogyceric acid
E ATP
Question #27
A 2
B 0
C 8
D 4
E 6
Question #28
A acetyl-CoA.
B none of these.
C oxaloacetic acid.
D citric acid.
E NADH.
Question #29
A both cycles oxidize compounds
B both cycles can start and stop
C both cycles produce ATP
D both cycles recycle their final products
E both cycles have more than one chemical reaction
Question #30
A phosphoglyceric acid
B acetyl CoA
C NAD+
D oxaloacetic acid
E CO2
Question #31
A the bonds between the phosphate groups are unstable.
B the three phosphate groups are strongly attracted to each other.
C the bonds between the phosphate groups are very stable.
D the sugar in ATP has numerous carbon-hydrogen bonds.
Question #32
A oxidation of glucose yields ATP
B oxidation of glucose is complete
C oxidation of glucose yields pyruvic acid
D oxidation of glucose yields NADH
Question #33
A to use in the Kreb’s cycle
B to make more toxic final products
C to use in the transition reaction
D to make less toxic final products
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 not occupied by anything
B enzymes active site is occupied by O2
C enzymes active site is occupied by substrate
D enzymes active site is occupied ATP
Question #36
A decreases the temperature
B loses an electron
C gains an electron
D increases the pH
Question #37
A entropy.
B free-energy content.
C activation energy.
D endothermic level.
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 oxygen concentration
C temperature
D substrate 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 NADH and FADH are reduced.
B The electrons gain energy with each transfer in the chain.
C NADH and FADH are oxidized.
D The final electron acceptor is oxidized.
Question #42
A Proton motive force from incoming H+ ions
B Proton motive force from incoming O2
C Proton motive force from incoming ATP
D Proton motive force from income CO2
Question #43
A the movement of flagella
B the movement of water across a membrane
C ATP accumulation in the plasma membrane
D a H+ electrochemical gradient formed across the plasma membrane
E the accumulation of water formed in respiration
Question #44
A 4
B 2
C 0
D 38
Question #45
A glycolysis
B oxidative phosphorylation
C the transition reaction
D fermentation
E the Kreb’s cycle
Question #46
A it is the final electron acceptor in the electron transport chain.
B it provides the hydrogen nuclei needed to create a proton gradient outside of the cell
C it is needed for glycolysis, which begins the process of respiration in cells.
D it is important in creating oxaloacetic acid in the Krebs cycle.