bio 242 micro lecture exam 1 study guide questions and answers best rated a new update 2022
Written for
BIO 242 MICRO LECTUR
All documents for this subject (1)
Seller
Follow
Nursexpert
Reviews received
Content preview
BIO 242 MICRO LECTURE EXAM 1 STUDY GUIDE QUESTIONS
AND ANSWERS BEST RATED A+ NEW UPDATE 2022
Chapter 1 (Introduction)
Define microorganisms.
• Organisms (microbes) that a microscope is required to see.
Bacteria, viruses, protozoa algae, fungi, multicellular parasites
Know the ways microorganisms are beneficial.
• Capture energy from son, store in molecules as food for other
organisms
• Decompose dead organisms
• Make nitrogen available and produce oxygen
• As food
o Link in food chain
o Food for humans
• Aid in digestion
• Make beer, wine bread
• Degrade pollutants (Bioremediation)
• Provide antibiotics
• Genetic engineering research
o Produce growth factors
Know the 3 domains of all living organisms.
• Archaea
• Bacteria
• Eukarya
Compare prokaryotes and eukaryotes.
BIO 242 MICRO LECTURE EXAM 1 STUDY GUIDE QUESTIONS
AND ANSWERS BEST RATED A+ NEW UPDATE 2022
,BIO 242 MICRO LECTURE EXAM 1 STUDY GUIDE QUESTIONS
AND ANSWERS BEST RATED A+ NEW UPDATE 2022
• Prokaryotes
o No nucleus or membrane covered organelles
o Very small
• Eukaryotes
o Nucleus
o Some small, but most are large
Have a general understanding of the 5 types of microbes: bacteria,
algae, fungi, protozoa, and viruses.
• Bacteria
o Single celled
o Lack nucleus
o Lack membrane enclosed organelles
o Multiply by binary fission
o Obtain nutrients by absorption or photosynthesis
• Algae
o Single celled and multicellular
o Has nucleus
o Has organelles
o Photosynthesis
o Only Prototheca causes disease
• Fungi
o Single and multi celled
o Molds and yeasts
o Has nucleus
o Has organelles
BIO 242 MICRO LECTURE EXAM 1 STUDY GUIDE QUESTIONS
AND ANSWERS BEST RATED A+ NEW UPDATE 2022
,BIO 242 MICRO LECTURE EXAM 1 STUDY GUIDE QUESTIONS
AND ANSWERS BEST RATED A+ NEW UPDATE 2022
o Nutrient by absorption
BIO 242 MICRO LECTURE EXAM 1 STUDY GUIDE QUESTIONS
AND ANSWERS BEST RATED A+ NEW UPDATE 2022
, BIO 242 MICRO LECTURE EXAM 1 STUDY GUIDE QUESTIONS
AND ANSWERS BEST RATED A+ NEW UPDATE 2022
• Protozoa
o Single-celled
o Has nucleus
o Has organelles
o Some visible with naked eye
o Nutrients by ingestation/engulf
• Viruses
o Acellular
o Nucleic acid with protein coat
o Invade cells and cause disease
o Viriods
▪ Simpler than viruses
▪ Short RNA with no coat
o Prions
▪ Infectious protein particle
o Intracellular obligate parasites
▪ Must live inside host cell to survive
Know the names of the scientists who contributed to the field of
microbiology and their contributions (do not have to know any dates).
• Robert Hooke
o 1st to describe cellular structure (tree bark)
o Single lens microscope (1660)
• Antony van Leeuwenhoek
o First “microscope” (1973)
o First view organisms at 100x-300x
BIO 242 MICRO LECTURE EXAM 1 STUDY GUIDE QUESTIONS
AND ANSWERS BEST RATED A+ NEW UPDATE 2022
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 Nursexpert. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.99. You're not tied to anything after your purchase.