Components of the replisome are: - Answer-topoisomerase, single strand binding proteins, DNA polymerase III, helicase
Anaerobic respiration - Answer-Uses electron carriers other than oxygen and yields less energy than aerobic respiration
Post-transcriptional modifications such as adding a G c...
MCB 3020 UF Exam Questions and
Answers
Components of the replisome are: - Answer-topoisomerase, single strand binding
proteins, DNA polymerase III, helicase
Anaerobic respiration - Answer-Uses electron carriers other than oxygen and yields less
energy than aerobic respiration
Post-transcriptional modifications such as adding a G cap and a poly-A tail to the newly
synthesized mRNA can be observed in - Answer-eukaryotes
What does the replisome not include? - Answer-Primers
What is true regarding rhodopsin-base phototrophy and a chlorophyll-base
phototrophy? - Answer-Rhodopsin-base phototrophy does not involve the electron
transport chain.
Chlorophyll vs bacteriorhodopsin - Answer-Chlorophyll is found in plants, algae, and
cyanobacteria. Electrons enter the electron transport chain.
Bacteriarhodopsin is found in bacteria and archaea and acts as a proton pump. Uses
proton motive force, NOT ETC
RNA polymerase recognizes the promoter region located on: - Answer-the DNA
molecule
Chaperones - Answer-dramatically increase in concentration when proteins are
exposed to high heat and adverse conditions to protect and refold proteins if necessary.
What are some final electron acceptors in anaerobic respiration? - Answer-SO4, NO3,
CO2
tRNA charging is - Answer-completed by aminoacyl-tRNA synthetases
What is the role of DNAj and DNAj in protein secretion? - Answer-To assist in folding
the protein
True or false: In translation 16S, rRNA acts as ribozyme during the elongation step -
Answer-False
What does 23S rRNA do? - Answer-Catalyze the formation of peptide bond between the
two amino acids
, Transcription of operons in procaryotes produces monocistronic mRNA or polycistronic
mRNA? - Answer-polycistronic. Eukaryotes produce monocistronic
What can cause the termination of RNA synthesis? - Answer-Stem loop structure in the
RNA molecule
Where does incoming amino acyl- tRNA bind to? - Answer-the A site
NO3 ----> N2 - Answer-Denitrification
What are true regarding protein folding? - Answer-Molecular chaperones are produced
in large quantities in response to thermal damage; DNAj and DNAk are examples of
heat-shock proteins which help in protein folding
What is a nucleosome? - Answer-The combination of DNA and proteins
Bacterial DNA is organized with help of ______ - Answer-chromatin-like protein
Are archaeal DNA and eukaryotic DNA similar? - Answer-YEP
What are consensus sequences in DNA transcription? - Answer-Prinbow box, TATA
box, -35 site
What is the Prinbow box? TATA box? - Answer-in bacteria, a series of TATAAT; found
in the promoter sequence and plays a role in initiating transcription. TATA is the same
thing but in eukaryotes
Which statement about the elongation of the lagging strand during DNA replication is
correct? - Answer-It requires a short RNA primer to proceed.
Polysomes are composed of - Answer-mRNA and ribosomes
DNA methylation - Answer-Used by E. coli mismatch repair system to distinguish old
DNA strands from new DNA strands. Old DNA strand is methylated
Fermentation involves the use of - Answer-substrate-level phosphorylation only
How does eukaryotic transcription differ from bacterial transcription? - Answer-
Eukaryotes have 3 major RNA polymerases; promoters differ from those in bacteria by
having a combination of many elements; eukaryotes have a cap, tail, and introns, and
eukaryotic genes are split or interrupted.
Which of the following is true regarding bacterial protein secretion? - Answer-Gram-
positive and gram-negative bacteria have different problems secreting proteins based
on the differences between the structure of their walls.
Voordelen van het kopen van samenvattingen bij Stuvia op een rij:
Verzekerd van kwaliteit door reviews
Stuvia-klanten hebben meer dan 700.000 samenvattingen beoordeeld. Zo weet je zeker dat je de beste documenten koopt!
Snel en makkelijk kopen
Je betaalt supersnel en eenmalig met iDeal, creditcard of Stuvia-tegoed voor de samenvatting. Zonder lidmaatschap.
Focus op de essentie
Samenvattingen worden geschreven voor en door anderen. Daarom zijn de samenvattingen altijd betrouwbaar en actueel. Zo kom je snel tot de kern!
Veelgestelde vragen
Wat krijg ik als ik dit document koop?
Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.
Tevredenheidsgarantie: hoe werkt dat?
Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.
Van wie koop ik deze samenvatting?
Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper lectknancy. Stuvia faciliteert de betaling aan de verkoper.
Zit ik meteen vast aan een abonnement?
Nee, je koopt alleen deze samenvatting voor €12,20. Je zit daarna nergens aan vast.
