Microbiology 250 Exam 1 Questions with Complete
Solutions. Verified for New updates
Microbiology - -✓study of microbes
List groups of organisms studied in microbiology: - -✓bacteria, fungus, algae/protists, viruses, helminthes
Differences between Prokaryotic and Eukaryotic cells: - -✓Prokaryotic
-no nucleus
-no membrane bound organelles
Eukaryotic
-true nucleus
-has membrane bound organelles
Animalae - -✓are not green, move
Evolution of microbial life on earth: - -✓No oxygen in early earthly era, bacteria have been around as
dominant life forms for a long time (3.5 billion years ago), Endosymbiosis
cytoplasm - -✓contains ribosomes, DNA - mixture of water, nutrients, proteins
nucleoid - -✓acts as nucleus - contains DNA, RNA, proteins
inclusion bodies - -✓granules for storage of extra carbon, nitrogen, phosphorus - energy sources
endospores - -✓DNA surrounded by proteins that protects central core of bacteria, protects bacteria:
resistant to heat, dessication, and chemicals
cytoskeleton - -✓protein filaments assist with cell growth and division - binary fission
plasma membrane - -✓phospholipid bilayer with polar heads and hydrophilic tails
facilitated diffusion - -✓protein helps move molecules from higher concentration to lower concentration
simple diffusion - -✓moves molecules from higher concentration to lower concentration naturally, no
energy
osmosis - -✓movement of water from high concentration to low concentration
plantae - -✓do not move, green
protists - -✓everything that does not fit into animalae and plantae
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 masigabethwel. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.