Exam (elaborations)
MIC 205 Exam 1/81 Correct Questions with Answers
- Institution
- MIC 205 Exam 1/81 Correct Questions With Answers
MIC 205 Exam 1/81 Correct Questions with Answers
[Show more]
Content preview
MIC 205 Exam 1/81 Correct Questions withAnswers
Van Leeuwenhoek - - -
- Robert Koch - - *German microbiologist who isolated, cultured and
identified:
- Bacillus anthracis, Mycobacterium tuberculosis, Vibrio cholera
*KOCH'S POSTULATE: To establish that an organism is the cause of a
disease, it must be:
- found in all cases of the disease examined
- prepared and maintained in a pure culture
- capable of producing the original infection, even after several generations
in culture
- retrievable from an inoculated animal and cultured again
- Pasture - - -
- Alexander Fleming - - *Antibiotics
- Edward Jenner - - *Vaccines
*English Doctor
*Demonstrated that if you infected people with
cowpox (Vaccinia virus) they did not get smallpox
- Hooke's Observation of Cork - - 1665: Hooke makes first observation of a
cell, the smallest unit of life
• Hooke thought the individual units looked like monks' quarters, which were
called cells
- Bacteria - - *Prokaryotic cell structure, including a nucleoid; no membrane-
bound organelles.
*Ribosomal RNA nucleotide sequences that are unique to this group.
*Unicellular
*Cell wall contains peptidoglycan
- Archaea - - *Prokaryotic cell structure, including a nucleoid; no membrane
bound organelles.
*Ribosomal RNA nucleotide sequences that are unique to this group.
*Unicellular
*No peptidoglycan
- Eukarya - - *Eukaryotic cell structure, including a nucleus and other
membrane bound organelles.
*Ribosomal RNA nucleotide sequences that are unique to this group.
, *Unicellular or multicellular.
*No peptidoglycan
- Shapes - - -Bacillus (rod)
-Coccus (spherical)
-Spiral (one or more twists)
-pleomorphic (many shapes)
- Arrangement - - -chains (streptococci, streptobacilli)
-clusters (staphylococci) -pairs (diplococci, diplobacilli)
-groups of four (tetrads) -cubes (sarcinae)
- Typical shapes of Bacteria - - -Irregular (archae)
-Coccus
-Curved (Vibrio, Spirillum, Spirochete)
- Membranes Separate - - • Life is order is chaos
- The second law of thermodynamic states that entropy (disorder) is always
increasing
• Life evolved in and requires a water (aqueous)
environment
• Membranes keep the ordered environment of
the cell separated from the outside
• Cells must use energy to maintain order
- Gram-negative - -
- Gram-positive - -
- Facilitated Diffusion - - Transporter allows a substance to moce across the
membrane, but only down its concentration gradient
- Active transport - - Using proton motive force as an energy source.
-can use atp as an energy source. A binding protein gathers the transported
molecules
-transports some sugars, amino acids, organic acids, inorganic ions.
- Passive transport - - *High concentration to low concentration
*Does not require energy
-Simple diffusion
-facilitated diffusion through nonspecific transporter
-Facilitated diffusion through a specific transporter
-Osmosis
- Group translocation - - Transporters chemically alter the substance as it is
transported across the membrane.
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 Victorious23. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £10.20. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
76799 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now