Class notes
class notes
- Course
- Institution
class notes to help guide
[Show more]
Seller
Follow
em30
Content preview
BIOL 1020 and BIOL 1021 - Lecture 13- Bacteria and Archaea -
Assigned Readings in Textbook:
Chapter 26 (section 26.1) – Two Prokaryotic Domains (pages 530 to 535)
Chapter 26 (section 26.2) – An Expanded Carbon Cycle (pages 535 to 538)
Chapter 26 (section 26.3) – Other Biogeochemical Cycles (pages 538 to 540)
Use the following wireframe outline to make notes on the content presented in Lecture 13
Refer to Chapter 26 in your textbook and the Chapter 26 resources on LaunchPad to supplement
your notes and aid in studying this material.
1. What are prokaryotes?
Ancient organisms
Ubiquitous – occur / thrive almost everywhere
- Including extreme habitats too hostile for most organisms
Successful – due to structural, functional, genetic adaptations
Have simple internal organization
Classified into 2 domains based on structure, physiology and biochemistry
(a) how are prokaryotes classified?
Tree of life consists of 3 branches (= domains)
1. Bacteria
2. Archaea
3. Eukaryotes
(b) why is size of prokaryotes restricted?
Much smaller than average eukaryotic protest, plant or animal cells
Surface area: Volume ratio limits size
(c) how are morphology and metabolism related in prokaryotes?
Morphologically simple but metabolically diverse playing a key role in the cycling of matter on
earth
1
, 2. What is the structure of a bacterial cell?
Location Structure Notes
Internal Structures cytoplasm
nucleoid region
plasmids
ribosomes
special membranes
External Structures plasma membrane
-Cell walls contain peptidoglycan polymer of
modified sugars cross-linked by short
cell wall polypeptides
-Cell walls of Archaea lack peptidoglycan
flagellum (flagella)
capsule
pili
2
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 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 these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller em30. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
56326 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now