Exam (elaborations)
BIOL 1105 chapter 26 with 100- correct answers(graded A+).
- Course
- Institution
BIOL 1105 chapter 26 with 100- correct answers(graded A+).
[Show more]
Content preview
BIOL 1105 chapter 26 with100% correct answers(graded
A+)
three ways prokaryotes take up DNA from environment - answer 1)
transformation
2) transduction
3) conjugation
transformation - answer the take-up of DNA from the environment
transduction - answer the viral transfer or DNA between microbes
conjugation - answer the transfer of genetic information by direct
cell-to-cell contact
plasmid - answer small, circular piece of DNA located in the
cytoplasm of many bacteria
conjugation tube - answer cytoplasmic connection between two
bacterial cells through which DNA passes during conjugation
True or False: Plasmids usually carry accessory genes that aren't
required for normal growth but can confer advantageous traits to a
bacterium such as antibiotic resistance. - answer true
True or False: Sometimes chromosomal DNA can be transferred to a
recipient cell if the plasmid DNA became incorporated into the
chromosomal DNA of the donor cell. - answer True
,True or False: Two common ways to organize groups of prokaryotes
are 1) based on what they look like (morphology) and 2) what type
of metabolism and chemical reactions they perform. - answer True
True or False: Prokaryotes come in a wide variety of sizes and
shapes. - answer True
True or False: Prokaryotes can be motile but some are not. - answer
True
spirillum - answer spiral shaped bacteria
coccus - answer round or sphere shaped bacteria
bacillus - answer rod shaped bacteria
strepto - answer chains of bacterial cells
staphylo - answer grape-like clusters of bacterial cells
diplo - answer bacteria arranged in pairs or groups of two
tetrad - answer bacteria arranged in groups of four
sarcina - answer bacteria arranged in groups of 8
flagella - answer a long, rotating filament that helps a bacterial cell
move
, True or False: All bacteria have at least one flagella. - answer False
True or False: Bacterial flagella move like a propeller helping the
bacteria to move. - answer True
True or False: Depending on the direction of flagellar rotation, the
bacterial cell either swims ahead or tumbles, which allows it to
change directions. - answer True
True or False: The cell walls are different in bacteria and archaea. -
answer True
peptidoglycan - answer found in the cell walls of bacteria
isoprene - answer found in the cell wall of archaea
Gram stain - answer a staining method that distinguishes between
two different kinds of bacterial cell walls
Gram positive - answer describing the group of bacteria that have
a cell wall that is structurally less complex and contains more
peptidoglycan than the cell wall of Gram-negative bacteria; stains
"purple" in the Gram stain
Gram negative - answer describing the group of bacteria that have
a cell wall that is structurally more complex and contains less
peptidoglycan than the cell wall of Gram-positive bacteria; stains
"pinkish/red" in the Gram stain
True or False: Bacteria range in size from almost as small as a virus
to over a billion times larger than the smallest. - answer True
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 GUARANTEEDSUCCESS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82191 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now