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Chapter 1 Introduction to Microbiology

Microbiology 197 - Chapter 1 lecture for class.

Introduction To Microbiology

Microbiology seems tough? Here we simplify this subject and make it an enjoyable one! Start with us in microbiology, and hopefully you will enjoy and learn at the same time.

0:11 - Definition of microbiology
0:21 - Benefits of microorganisms
0:49 - How do we categorize microrganisms
1:12 - Hierarchy of biological classification
1:55 - Differences between Eukaryotes and Prokaryotes
2:23 - Eukaryotes kingdoms
2:42 - Bacterial Nomenclature
3:13 - Different shapes of Bacteria
3:52 - Bacterial architecture
5:11 - Gram staining
5:43 - Difference in plasma membrane of Gram +ve and Gram -ve Bacteria

Microbiology - Overview

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Study Strategies | How I study for exams: Microbiology edition


Here is how I studied for my microbiology exam! Keep in mind, this entire process should take at least a week if not several weeks!!! I hope theses strategies help you in your studies!!! If you have any questions, feel free to leave a comment, email, or message me on social media!

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A tour of the Microbiology Lab - Section one

Microbiology Chapter 1: Part 1 of 2

Microbiology Chapter 1: Part 1 of 2

Crash Course Microbiology

#microbiology #crashcourse

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Microbiology, along with mathematics, chemistry, and physics, is one of the fundamental branches of basic sciences. The knowledge and detailed study of microorganisms and their functions can establish its use in a variety of applications, from medical, food and environmental, agricultural and industrial field.

Introduction to Microbiology.

Introduction to Microbiology. This is a teaser video. Watch the complete lecture in member's area at

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Day in the Life - Microbiology / Virology - Prof Bill Rawlinson

Microbiology, which deals with diseases caused by infectious agents such as bacteria, viruses, fungi and parasites.

Medicine is Pathology

Microbiology - Gram-positive Bacteria I High-Yield Topics covered

Gram-positive bacteria are bacteria that give a positive result in the Gram stain test. Gram-positive bacteria take up the crystal violet stain used in the test, and then appear to be purple-coloured when seen through a microscope. This is because the thick peptidoglycan layer in the bacterial cell wall retains the stain after it is washed away from the rest of the sample, in the decolorization stage of the test.

Microbiology of Bacterial Morphology & Shape

Microbiology of Bacterial Morphology & Shape

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Introduction to Microbiology Culture Techniques

Nicole Gentile, PhD Candidate, provides an overview of basic microbiology and the concepts involved, including the bacterial growth curve and classifying organisms based on morphologies. This lecture describes blood, urine and skin/soft tissue cultures, focusing on the types of media, sample collection processes, culture procedures, as well as speciation and susceptibility testing. Basic staining procedures, such as the simple stain, gram stain, spore stain, negative stain, and acid fast stain are briefly discussed. Included in the staining procedure descriptions are explanations of the organisms that the stains identify. In addition to staining procedures, biochemical tests used for differentiating bacteria are covered. Concluding the lecture are some facts about fungi and viruses, focusing on the current 2009 novel H1N1 influenza pandemic.

Microbiology - Streptococcus species

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Bacteria can be divided into gram negative or gram positive depending on their cell wall/peptidoglycan make up. Gram positive implies thick peptidoglycan layer and stain a purple colour.

There are two main spp of gram positive cocci that causes human infections. These are Streptococci and staphylococci, they are differentiated by two main criteria: first their ability to produce the enzyme catalase. Streptococci are catalase negative. Staphylococci are catalase positive, which allow them to convert hydrogen peroxide to water and oxygen gas. Hence on a slide or tube bubbles are formed. Second criteria to differentiate staph and strep is based on microscopic appearance. Staphylococcus spp are usually in clusters, where as streptococci are arranged in pairs, or chains.

Streptococcal infections remain a serious health problem worldwide.
The streptococci are divided based on their oxygen requirement are classified into aerobes/facultative anaerobes and obligate anaerobes. Here we are focusing on the aerobic and facultative anaerobes which make up majority of strep spp. I am writing aerobic here because facultative anaerobes are able to survive in oxygen.

The Gram- positive streptococci are then further divided into the haemolytic properties in blood. The streptococcus spp. are smeared in blood agar which is a plate containing blood. Haemolytic property of the bacteria mean the bacteria ability to haemolyse, breakdown red blood cells. Streptococci are divided into three haemolytic groups:
· Alpha haemolytic
· Beta haemolytic
· Gamma haemolytic

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Chapter 2 - The Chemistry of Microbiology

This chapter looks at atoms, bonds, pH and organic molecules. Good review of chemistry we see in microbiology.

Chapter 1 - Part 1 - Introduction to Microbiology

What is Microbiology
What is Studied in Microbiology
Microorganisms, cell types, and characteristics
Infectious Diseases

What is a Medical Microbiologist?

What does a medical microbiologist do? Dr Shanika Crusz’s role is to diagnose, treat and prevent infection caused by micro-organisms (bacteria, viruses, fungi and parasites). Find out more about what a medical microbiologist does in this short video.
00:07 – What is a microbiologist?
00:30 – Why is microbiology important?
00:56 – What is a typical day like in microbiology?
02:01 – Do you have contact with patients?
02:56 – Does it allow you to have a work/life balance?
03:51 – What is the best part of the job?
All the videos in this playlist include:
What is a microbiologist?
Interview with a Medical Microbiologist: “You never know what’s going to grow”
What is a Haematologist?
Interview with a Haematologist: “Seeing patients get better, the best feeling in the world”
What is a Histopathologist?
Interview with a Histopathologist: “One of the medical specialties not everyone knows about”
What is a Clinical Biochemist?
Interview with a Clinical Biochemist: “Suggesting a test that will make a final diagnosis”
Find out more about a career in microbiology:
Explore other careers in pathology:
Produced by: Rachel Berkoff

Why Microbiology? Scientists Share their Stories

Members of the American Society for Microbiology share their stories of how they discovered microbiology. To learn more about becoming a member visit

Subscribe to ASM's YouTube channel at where you can view a wide variety of microbiology related content from science talks and lectures, interviews with leaders in the field, how to videos, workshops/trainings, scientific journal video abstracts and more.

Visit the American Society for Microbiology at

Become a member today at

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Show your support and get updates on the latest microbial offerings and news from the ASM.

ASM International Facebook Groups
Join an ASM International Facebook Group and connect with microbiologists in your region.

Follow all the latest news from the Society.

Outstanding images of your favorite viruses, fungi, bacteria and parasites

"Microbiology is where my passion lies."

Biomedical Science graduate Lauren Upston is passionate about her job as a Medical Scientist.

In the hospital we are working alongside everyone else to bring about a result for the patient - that’s really satisfying. Exciting things happen all the time. I’m still learning things every day.

Microbiology Chapter 7 Part 1 of 1

Microbiology career jobs and salary

Microbiology career jobs and salary - This lecture explains about the career opportunity after completing Microbiology honors. This video is dedicated to all microbiology graduate and post graduate students who want to pursue career in microbiology field. This video also states the microbiology jobs availability and salary of various microbiology jobs.
Watch this video if you want to know the following -
1. Microbiology career option
2. Microbiology jobs
3. Microbiology jobs salary
4. Microbiology government jobs
5. Private jobs after Microbiology
Stay tuned to know more about your future microbiology career after BSc and MSc in Microbiology.
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