Exam (elaborations)
chapter 3 - microbiology questions and answers 2024
- Course
- Institution
chapter 3 - microbiology
[Show more]
Content preview
chapter 3 - microbiologymicrobiology - answer the branch of biology that deals with microorganism and their
effects on other living organism
microorganism - answer minute living things that individually are too small to be seen
with the naked eye
types of microorganism - answer-bacteria
-viruses
-protozoa
-microscopic algae
AIDS - acquired immunodefiency syndrome - answer viral disease that attacks and
destroy the immune system
certain microorganisms are beneficial to the environment by: - answer-helps recycle
chemical elements into the soil,air ,and water by breaking down waste
-food industry (alcohol, yogurt, cheese, bread, etc)
-to help digest and synthesize vitamins into the body
second - answermicrobial diseases are ____ to the respiratory tract as causes of
illnesses in disease
fecal-oral cycle - answermicrobial diseases of the digestive system are typically
transmitted through ______.
latin - answerthe scientific names of organisms are in _____.
-genus
-species - answerscientific naming assigns each organism two names
1. capitalized, not
2. underlined, italicized - answer1. the genus is the first name and is always _____ ; the
specific species name follows and is ____ capitalized.
2. the organism is referred to by both the genus and species, and both names are ____
or ______.
-round
-rod
-spiral - answerbacteria have a few basic shapes ____, ______, ______.
, cocci - answerround are spherical bacteria are called _____.
bacilli - answerrod-shaped bacteria are called ______.
flagella - answerwhip like structure which helps propel the organisms through liquid
media
-pathogenic (disease producing)
-nonpathogenic (non-disease producing) - answerbacterias are classified into two
categories
bacteria - answer-unicellular (has one cell)
-reproduce by binary fission (asexual reproduction)
basic requirements for bacterial survival - answer-warmth (98.6 F)
-food (mineral, proteins, carbs, etc)
-water
-alkaline PH
-elimination of waste materiral
-oxygen
subdued light or darkness
-aerobic
-anaerboc - answerbacteria can grow under either ____, ____ conditions
gram-staining process - answeruse several color of dyes depending on type of
microorganism. A type of specific color will be retained by the cells
gram postive rods (bacilli) - answermicroorganisms belonging to ____ have the abililty
to slow down their metabolism and become dormant when their environment is
threatened
spore or endospore - answer- a special characteristic in bacteria
-dehydrated cell
-durable cell with thick wall that are hard and shell-like
-can survive in extreme environment
-highly resistant to sterliants
-can remain dormant
Bacillius anthracis - answer-the organism for anthrax
-one of the most feared agents of biological warfare
-opportunistic pathogens
-relatively low virulence (ability to cause disease)
opportunistic pathogens - answercause infection in individuals with weakened immune
system
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 julianah420. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78252 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now