Medical and Environmental Applications Quiz

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the significance of salvarsan in medical history?

  • It was developed from a mold species.
  • It was the first antimicrobial medication specifically for syphilis. (correct)
  • It is used to treat bacterial infections in general.
  • It was the first antibiotic discovered.

Which bacterial species is known for its role in degrading the explosive trinitrotoluene (TNT)?

  • Ralstonia eutropha
  • Thermomonospora sp.
  • Clostridium bifermentans (correct)
  • Lactobacilli

Which process is primarily used by bacteria to enhance the flavor of chocolate?

  • Biodegradation
  • Fermentation (correct)
  • Antibiotic production
  • Degradation

What type of plastic is produced by the bacterium Ralstonia eutropha?

<p>Biodegradable plastic (D)</p> Signup and view all the answers

Which method is considered more environmentally friendly for finishing denim compared to traditional stone-washing?

<p>Use of cellulase from bacteria (A)</p> Signup and view all the answers

What is the duration of Part 1 in the course structure?

<p>Sept 5th – Oct 1st (D)</p> Signup and view all the answers

Which part of the course immediately follows Part 1 in the schedule?

<p>Part 2 (C)</p> Signup and view all the answers

What is the time allocated for the course textbooks on course reserve?

<p>2 hours (A)</p> Signup and view all the answers

Which date marks the beginning of Part 2 of the course?

<p>Oct 3rd (D)</p> Signup and view all the answers

How many parts does the course structure contain?

<p>Three parts (A)</p> Signup and view all the answers

Where can detailed information about the course textbooks be found?

<p>On the course outline (A)</p> Signup and view all the answers

What type of information is likely to be available on the UM Learn platform for this course?

<p>Course announcements and resources (C)</p> Signup and view all the answers

What is the proper way to start a subject line in an email to the course instructor?

<p>MBIO 1220 A04: Subject (A)</p> Signup and view all the answers

During which time frame can students expect a response to their emails?

<p>Only during business hours Monday to Friday (C)</p> Signup and view all the answers

What should a student refrain from doing immediately after grades are released?

<p>Asking about concerns regarding grades (D)</p> Signup and view all the answers

What is the scheduled location for the office hours of the course instructor?

<p>414B Buller Building (D)</p> Signup and view all the answers

Which learning strategy is emphasized for student success?

<p>Collaborating and teaching each other (C)</p> Signup and view all the answers

What major aspect of microbiology should students be able to explain after the first class?

<p>What microbiology is and its significance (D)</p> Signup and view all the answers

What is a recommended practice regarding learning and preparation for midterms and exams?

<p>Implement evidence-based learning strategies early (A)</p> Signup and view all the answers

Which of the following is NOT a focus of the course's initial learning outcomes?

<p>Discussing the characteristics of mammals (D)</p> Signup and view all the answers

What online resource is mentioned for aiding students with learning strategies?

<p>Learning Scientists Handout on UM Learn (D)</p> Signup and view all the answers

What is the primary focus of the field of microbiology?

<p>The study of the microbial world (B)</p> Signup and view all the answers

Which of the following groups are considered prokaryotes?

<p>Only bacteria (B)</p> Signup and view all the answers

What is the correct format for writing a scientific name?

<p>Genus capitalized, species lowercase, italicized in print (C)</p> Signup and view all the answers

Who developed the system used for scientific naming?

<p>Carl Linnaeus (C)</p> Signup and view all the answers

How should one write the scientific name of Escherichia coli in handwritten format?

<p>Escherichia coli (A), Escherichia coli (C)</p> Signup and view all the answers

What concept did Robert Hooke's observations lead to in the field of microbiology?

<p>Cell theory (B)</p> Signup and view all the answers

What characterizes acellular infectious agents within the microbial groups?

<p>They cannot carry out metabolic processes. (B)</p> Signup and view all the answers

Which of the following is NOT a type of microorganism covered in microbiology?

<p>Arthropods (B)</p> Signup and view all the answers

What did Antonie van Leeuwenhoek refer to as 'little animalcules'?

<p>Living microorganisms (B)</p> Signup and view all the answers

What is the second part of the scientific name called?

<p>Species (D)</p> Signup and view all the answers

What scientific method did Louis Pasteur use to disprove spontaneous generation?

<p>Swan necked flasks (D)</p> Signup and view all the answers

In Pasteur's experiments, what was the role of the yeast he studied?

<p>To produce alcohol from sugar (B)</p> Signup and view all the answers

In online formats, how should scientific names be presented?

<p>Italicized (D)</p> Signup and view all the answers

Which group is primarily made up of eukaryotic microorganisms?

<p>Yeast (C)</p> Signup and view all the answers

What process did Pasteur advocate for to prevent spoilage of products like beer or wine?

<p>Pasteurization (D)</p> Signup and view all the answers

What was the prevalent belief about disease before the germ theory developed?

<p>A punishment for misdeeds (C)</p> Signup and view all the answers

What fundamental difference does biogenesis assert compared to spontaneous generation?

<p>Living matter comes from pre-existing living matter (B)</p> Signup and view all the answers

Which phenomenon occurs when bacteria convert alcohol into vinegar in the presence of air?

<p>Souring (D)</p> Signup and view all the answers

What was a significant implication of the germ theory of disease?

<p>Microorganisms are responsible for many diseases (C)</p> Signup and view all the answers

Why did Louis Pasteur believe in heating beverages after fermentation?

<p>To kill harmful bacteria and prevent spoilage (D)</p> Signup and view all the answers

Flashcards

What is MBIO*1220?

MBIO 1220, Essentials of Microbiology is a course that covers the fundamental aspects of microbiology. This includes topics like the structure and function of microorganisms, their role in ecosystems, and their implications for human health.

How is the MBIO*1220 course structured?

The course is structured into three main parts. Part 1 covers the basic principles of microbiology, Part 2 dives into microbial diversity and metabolism, and Part 3 investigates the impact of microbes on humans.

Where can I find the textbook for MBIO*1220?

The book used for this course is available for purchase through the University of Manitoba bookstore.

Where can I find UM Learn for MBIO*1220?

The course's online platform is accessible through the UM Learn website.

Signup and view all the flashcards

Who teaches this course?

The course is taught by Dr. - whose contact information is provided on the website in the syllabus and assignment sections.

Signup and view all the flashcards

Where can I find the syllabus?

The course outline and syllabus provide detailed information about the textbook, assignments, grading policy, and other course requirements, accessible in the online syllabus or on the UM Learn website.

Signup and view all the flashcards

What is the best way to stay updated on the latest course information?

The course website - UM Learn - will be regularly updated with new information about the course, syllabus and other important information from the course instructor.

Signup and view all the flashcards

What is Microbiology?

The study of microscopic organisms, including bacteria, viruses, fungi, and protozoa.

Signup and view all the flashcards

What are Prokaryotes?

They are single-celled organisms lacking a nucleus and other membrane-bound organelles. Examples include bacteria and archaea.

Signup and view all the flashcards

What are Eukaryotes?

They have a nucleus and other membrane-bound organelles. Examples include fungi, algae, protozoa, and plants.

Signup and view all the flashcards

What are Acellular Infectious Agents?

They are not considered living organisms as they lack a cellular structure and can only replicate within a host cell. Examples include viruses and prions.

Signup and view all the flashcards

What is Binomial Nomenclature?

A two-part naming system used for classifying organisms.

Signup and view all the flashcards

What is a Genus?

The first part of a scientific name, written with a capital letter. It represents a group of closely related species.

Signup and view all the flashcards

What is a Species?

The second part of a scientific name, written in lowercase. It specifically identifies a particular species within a genus.

Signup and view all the flashcards

How is a Scientific Name formatted?

It refers to the scientific name written in italics when typed or underlined when handwritten.

Signup and view all the flashcards

How to abbreviate a scientific name?

After the first use, a scientific name can be shortened to the first letter of the genus followed by a period and the full species name.

Signup and view all the flashcards

Who is Carl Linnaeus?

A Swedish scientist who developed the system of binomial nomenclature in the 18th century.

Signup and view all the flashcards

What do Microbiologists do?

Microbiologists are scientists who study microorganisms. They investigate their roles in various ecosystems, develop new technologies, and solve problems related to health, agriculture, and industry.

Signup and view all the flashcards

What are the major groups of microorganisms?

The major groups of microorganisms include bacteria, archaea, fungi, protozoa, and viruses. They are diverse in their structure, metabolism, and habitats.

Signup and view all the flashcards

What are the benefits and challenges of microbes?

Microorganisms play essential roles in various aspects of life. They contribute to food production, nutrient cycling, and bioremediation. However, they can also cause diseases and pose threats to human and animal health.

Signup and view all the flashcards

How are scientific names of microbes written?

Scientific names of microbes are written in a binomial system using two words: the genus and species. The first word is capitalized, and the second is lowercase. Both words are italicized or underlined.

Signup and view all the flashcards

Who were the early scientists in Microbiology?

Early scientists like Antonie van Leeuwenhoek, Louis Pasteur, and Robert Koch made groundbreaking discoveries that laid the foundation for the field of microbiology. Their work helped understand the nature of microorganisms, their role in disease, and the development of methods to combat them.

Signup and view all the flashcards

What is significant about microbiology?

Microbiology is a dynamic field that continues to expand our understanding of the microbial world. It has applications in medicine, agriculture, biotechnology, and environmental sciences.

Signup and view all the flashcards

What is the main focus of microbiology?

The field of microbiology explores a wide range of microorganisms and their interactions with the environment.

Signup and view all the flashcards

What is the importance of microorganisms in the environment?

Microorganisms play essential roles in maintaining the balance of various ecosystems on Earth.

Signup and view all the flashcards

What is penicillin?

The first antibiotic discovered, penicillin is a naturally produced compound by molds or bacteria that inhibits the growth or kills other microorganisms.

Signup and view all the flashcards

How do microbes help clean up explosives?

Microbes can break down the explosive contaminant Trinitrotoluene (TNT), used in ammunition, by using bacteria named Clostridium bifermentans.

Signup and view all the flashcards

How are microbes involved in chocolate production?

The fermentation process using yeasts, Lactobacillus and Acetobacter helps in retrieving the seeds from cacao pods and promotes chocolate flavor development.

Signup and view all the flashcards

What does Ralstonia eutropha make?

Ralstonia eutropha, a useful bacterium, can produce biodegradable plastics called Polyhydroxybutyrate (PHB).

Signup and view all the flashcards

How are microbes used in biofinishing jeans?

Cellulase, an enzyme from a thermophilic bacterium, reduces hairiness and increases softness of denim in jeans, creating a 'worn look'.

Signup and view all the flashcards

Spontaneous Generation

The belief that living things can arise from non-living matter.

Signup and view all the flashcards

Biogenesis

The principle that living organisms can only arise from pre-existing living organisms.

Signup and view all the flashcards

Who disproved spontaneous generation?

A scientist who used swan-necked flasks to disprove spontaneous generation.

Signup and view all the flashcards

Fermentation

The process by which yeast converts sugars into alcohol in the absence of oxygen (anaerobic).

Signup and view all the flashcards

Souring

The process by which bacteria convert alcohol into vinegar in the presence of oxygen (aerobic).

Signup and view all the flashcards

Pasteurization

The process of heating liquids like milk or beer to kill bacteria and prevent spoilage.

Signup and view all the flashcards

Germ Theory of Disease

The idea that diseases are caused by microscopic organisms.

Signup and view all the flashcards

First Sight of Cells

Robert Hooke's discovery of individual cells using a crude microscope.

Signup and view all the flashcards

First Sight of Microorganisms

Antonie van Leeuwenhoek's discovery of living microorganisms, which he called 'little animalcules'.

Signup and view all the flashcards

Cell Theory

The theory stating that all living organisms are composed of cells.

Signup and view all the flashcards

Study Notes

Course Information

  • Course title: MBIO*1220 - Essentials of Microbiology
  • Course components: Part 1 (Sept. 5th - Oct. 1st), Part 2 (Oct 3rd – Nov 5th), Part 3 (Nov 21st - Dec 5th)
  • Midterms (2) and final exam scheduled within the course structure

Course Textbooks

  • Required course textbook: Nester's Microbiology: A Human Perspective
  • Textbook edition: 9th
  • Textbook authors: Anderson, Salm, Allen, Nester
  • Access textbook: Available on course reserve (2 hours)
  • University of Manitoba bookstore website: http://bookstore.umanitoba.ca/SelectTermDept

Course Materials

  • UM Learn site: MBIO 1220 A04
  • Discussion board: Used to answer course-related questions
  • Email address for course-related questions or concerns: [email protected]
  • Important note about emailing: Include "MBIO 1220 A04:" in the email subject line & only send emails during business hours (Mon-Fri 8am-4pm)

Office Hours

  • Location: 414B Buller Building
  • Time: Thursdays 1:00 – 2:00pm
  • First Office Hour: Thurs. Sept. 12th
  • Further note: All deviations from the set time and/or date will be posted on UM Learn.

Tips for Success

  • Read Learning Scientists handout on the platform.
  • Start learning the content early to avoid last-minute cramming.
  • Ask questions, participate in class discussions, and study in groups.

iClicker

Class #1 Learning Outcomes

  • Describe microbiology, the work of microbiologists and the characteristics of major groups of microorganisms.
  • Be able to write scientific names of microbes correctly (including formatting guidelines).
  • Identify the benefits and challenges of microbes in society.
  • Describe the significant historical findings that led to the development of microbiology.

What is Microbiology?

  • The study of the microbial world.
  • Key entities within the microbial world: bacteria, archaea, eukarya, viruses, viroids, and prions.

Major Groups of Microorganisms

  • Prokaryotes (bacteria and archaea)
  • Eukaryotes (algae, protozoa, fungi, helminths)
  • Acellular infectious agents (viruses, viroids and prions)
  • Note: Diagrams are included as visuals.

Scientific Names

  • Developed by Carl Linnaeus in the 1700s
  • Latin-based system to reflect characteristics.
  • 2-part (binomial) system: genus (capitalized) followed by species (lowercase), e.g., Escherichia coli.
  • Formatting: Italics for online, underlined for handwritten use. Later use abbreviations.

History of Microbiology

  • Timeline review (visual)
  • Key figures & discoveries.
  • Important figures include: Hooke, van Leeuwenhoek, Pasteur, Lister, Koch, Jenner.
  • Important methods: Staining, isolation, and pure culture methods.
  • Major historical events and important milestones are outlined in timeline format

First Sights of Microbes

  • Robert Hooke (1665) and van Leeuwenhoek(1674) discoveries and the development of microscopes.
  • Cell theory concept

Spontaneous Generation vs Biogenesis

  • Concept of spontaneous generation and biogenesis:
  • Key figure in debunking spontaneous generation: Pasteur's experiments that supported biogenesis.

Louis Pasteur's Further Contributions

  • Fermentation processes (anaerobic and aerobic), yeast and bacteria's action.
  • Pasteurization

Germ Theory of Disease

  • Microorganisms as cause of diseases
  • Key figures that helped establish theory

Joseph Lister (1860s)

  • Development of aseptic techniques and disinfectant use.

Robert Koch (1876)

  • Proved direct link between bacteria and infectious diseases (anthrax.)
  • Koch's postulates

Edward Jenner (1796)

  • Development of smallpox vaccine, a key contribution in preventing diseases.

Paul Ehrlich

  • Proposed specific bacterial targets for chemicals.
  • Selective toxicity, a concept he proposed, which helps in development of specific drugs to fight against many disease-causing microbes, without harming the human body.
  • Salvarsan (first antimicrobial medication)..

Alexander Fleming (1928)

  • Discovered penicillin (the first antibiotic).

Fun Facts:

  • Microbes in various domains and applications: food, explosives, plastics.
  • Bio-based products (biofuels, vitamins, cosmetics)
  • Role and use of microbes for environmentally friendly or sustainable practices like biofinishing.

Who Runs the World... Microbes!!

  • Microbiota and their roles
  • Importance of microbiome to human health.

Not all Microbes cause disease!

  • Microbiota and role in human health, not only causing diseases.

Pathogens

  • Microbes causing various diseases.
  • Costs associated with communicable diseases: $8.3 billion in Canada (2008), and $55 billion in US (2008) due to antibiotic-resistant infections.

What do Microbiologists do?

  • Scope of microbiological work.
  • Different specializations: Bacteriology, virology, mycology, immunology.

Summary and Next Class

  • Recap of lecture notes
  • Setting good habits for success in the course
  • Reminder: Reading the textbook and preparation for the next class.
  • Next class topic: The Molecules of Life.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

More Like This

Use Quizgecko on...
Browser
Browser