PCB 3023 Exam 1 Study Guide with Complete Solutions
4 views 0 purchase
Course
PCB 3023
Institution
University Of South Florida
PCB 3023 Exam 1 Study Guide with
Complete Solutions
Flow of genetic information in all living cells - Answer️️ -DNA ->
RNA -> Protein
Replication-> Transcription -> Translation
Miller-Urey experiment - Answer️️ -recreated conditions thought to
exist in the atmosphere of pr...
Evidence for RNA World - Answer✔️✔️-RNA can catalyze the
polymerization of nucleotides, including the synthesis of
complementary RNA, using itself as a template. Not observed in
DNA.
The first cell - Answer✔️✔️-self-replicating RNA and other life-
promoting molecules inside a phospholipid membrane
What Constrains the size of a cell? - Answer✔️✔️-The ratio of surface
area to volume. Smaller cells have a greater surface area to volume
ratio.
Surface area to volume ratio - Answer✔️✔️-radius = 1cm -> Surface
area : volume ratio is ~ 3:1
Radius = 10cm -> Suface area : volume ratio is ~ 1:3
Molecular Cell Biology PCB 3023 BROWARD COLLEGE/ UNIVERSITY of
SOUTH FLORIDA/ UCF COLLEGE Of Sciences
High sa : v ratio means - Answer✔️✔️-more membrane per unite of
volume. important for the cell to interact with its environment.
smaller cell interact more efficiently; less likely to lose energy as
heat to surroundings.
prokaryotic cell - Answer✔️✔️-no nucleus
no organelles
single chromosome (in nucleoid area) +plasmids
cell wall
capsule
most diverse of cells
Photosynthetic bacteria - Answer✔️✔️-obtain energy from sunlight.
have internal system of membranes where photosynthesis occurs.
chemosynthetic - Answer✔️✔️-derive energy from oxidation of H2S.
ex. Filamentous Beggiatoa
Mitochondria - Answer✔️✔️-organelles found in most eukaryotic cells
and generate most of the cell's supply of usable energy. extract
energy from food
DNA-containing organelles (endosymbionts)
3
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller SophiaBennett. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R226,82. You're not tied to anything after your purchase.
