MIP 300 Study Guide Questions and Answers Test
External function - Answer--Attachment to surfaces
-Protection from environment or phage
-Horizontal gene transfer
-Movement
Polysaccharide layers - Answer--Sugars
-Capsule
-Slime Layer
-Glycocalyx
Capsule - Answer-well organized layer, ...
MIP 300 Study Guide Questions
and Answers 2024-2025 Test
External function - Answer--Attachment to surfaces
-Protection from environment or phage
-Horizontal gene transfer
-Movement
Capsule - Answer-well organized layer, not easily removed
-Protects against dehydration
-Protects against phagocytosis
-Allows them to adhere.stick
Phagocytosis - Answer-Cell eating
- w/o capule cell compliments bind to cell and mark it for destruction
slime layer - Answer-Less organized, diffuse and easily removed
Glycocalyx - Answer-"Sugar shell"
Encompasses both capsule and slime layer
Have many bacteria in it
Biofilms - Answer-Protected by and attached by layers of polysachharides
-form on teeth roacks or other surfaces
-30% of implants removed because
-Quorum sensing
quorum sensing - Answer-The ability of bacteria to sense the presence of other bacteria
via secreted chemical signals.
once concentration is high enough
-Polysacharide production up
-antibiotic resistance genes goes down
-Flagella down
, Cell shape
Protects against pH, osmotic pressure, and antibacterial enzymes
attahcment
Mycolic acid layer - Answer-waxy outer layer in Mycobacterium
Somewhat resistant to:
dehydration
Antibiotics
phagocytosis
TB - Answer--Consumption
-PPD and chest x-rays
Pili - Answer-Small, short hair like appendages (3-10 nm diameter)
-most not for motility
-can twitch for motility
-adhere to host
-proteins
Bright Field Microscope - Answer--produces a dark image against a brighter
background,
-Most common
-Must fix cells
-Color of stain=bacteria color
-100x requires oil
-Light is bet through objective
-Basic dyes binf to neg
-Acidic dyes bind to pos
Dark Field Microscope - Answer--Background is dark, organism is light
-Light is refracted by organism
-in the field, dont have to heat fix or stain
ex.Syphilis
phase contrast microscope - Answer--Shades of grey to show contrast in cell
components
-slight differences in refractive indexes into light intensity
-Motility because no fixing or staining
fluorescence microscopy - Answer--Uses UV light to excite fluorescent molecules
-Some cells take up the dye
-Common in studying viruses
Magnification - Answer-Objective X eyepiece
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 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 Scholarsstudyguide. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £10.44. You're not tied to anything after your purchase.
