Exam (elaborations)
BIO 2104 Exam 2 Questions and Complete Solutions Graded A+
- Course
- Institution
BIO 2104 Exam 2 Questions and Complete Solutions Graded A+
[Show more]
Content preview
BIO 2104 Exam 2Questions and
Complete Solutions
Graded A+
Denning [Date] [Course title]
, List and describe three structures common to all bacteria - Answer: Cell wall, Flagella, Fimbriae, Pilus
(Many other examples available)Cell membrane, DNA chromosome, Ribosomes
List and describe four structures found in some bacteria - Answer: Cell wall, Flagella, Fimbriae, Pilus
(Many other examples available)
What are the three general shapes of bacteria - Answer: Cocci, Bacilli, Vibrio
Describe two arrangements found among the general shapes of bacteria - Answer: Staphylo- Strepto-
diplo- or tetrad
True/False: Bacterial fimbriae are used for conjugation - Answer: False
Describe the differences between capsules and biofilms - Answer: Capsules are a protective outer layer
surrounding a singular organism
Biofilms are a protective outer layer made to surround and protect a diverse group of organisms
Pili - Answer: Attachment from one gram-negative bacterial cell to another for conjugation (bacterial
sex) to transfer plasmids. Plasmids are small pieces of DNA with extra traits like antibiotic resistance
Fimbriae - Answer: Fuzzy, small appendage that surrounds the bacterial cell and allows for attachment
to surfaces
Flagella - Answer: Long, tail-like appendage(s) that allow for true motility and, in some cases, attachment
You successfully complete gram staining and your bacteria are all pink/red. What is your gram
stainingresult? What does it tell you about the structure of this bacterial species? - Answer: Gram
Negative Organism (Pink/Red) The bacteria have a thin peptidoglycan layer in their cell wall and an inner
and outer membrane
Gram Positive - Answer: Thick peptidoglycan layer which stains purple. Only an inner cell membrane.
Usually easier to treat due to the thick peptidoglycan layer being easily targeted by antibiotics.
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 YourExamplug. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67163 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now