WK 5: Microbiology Lecture Notes (Med Yr1-2)

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Questions and Answers

What is the approximate ratio of bacterial cells to human cells in the human body?

1.3:1 (correct)
1:1
3:1
10:1

What percentage of the Earth's biomass is constituted by microorganisms?

50%
99%
70%
90% (correct)

What is the approximate number of microbial cells that exist on Earth?

5x10^25
5x10^40
5x10^30 (correct)
5x10^20

What is the origin of around 30% of human DNA?

Viral (D) Signup and view all the answers

Which of the following is NOT a type of relationship between microorganisms?

Predation (D) Signup and view all the answers

What is the primary role of microorganisms in food chains?

Decomposers (B) Signup and view all the answers

In which semester is the topic 'Benefits and mischiefs of intestinal flora' covered in Year 1?

2nd Sem (D) Signup and view all the answers

Which of the following is an example of microorganisms' role in food production?

Bread (B) Signup and view all the answers

What is the primary focus of the exam questions in Microbiology and Infectious Diseases?

Applying concepts to real patients in hospitals and clinics (A) Signup and view all the answers

What is the primary role of microorganisms in the Earth's ecosystem?

Cycling carbon, nitrogen, sulphur, hydrogen, and oxygen (C) Signup and view all the answers

What is the earliest form of life on Earth?

Microorganisms (D) Signup and view all the answers

In which year is the topic 'Bone and joint infections' covered?

Year 2 (A) Signup and view all the answers

What is the primary responsibility of infection control?

Everybody's responsibility (A) Signup and view all the answers

What is the primary classification of microorganisms discussed in the course?

Gram-positive vs. gram-negative bacteria (D) Signup and view all the answers

What is the focus of the 'Host-pathogen interactions' topic?

Analyzing the interactions between hosts and pathogens (C) Signup and view all the answers

In which semester is the topic 'Introduction to microbiology' covered in Year 1?

1st Sem (C) Signup and view all the answers

What is the primary importance of the pathology laboratory?

Diagnosing infections and identifying microorganisms (A) Signup and view all the answers

What is the focus of the 'Strategies for respiratory infections' topic?

Developing strategies for respiratory infections (C) Signup and view all the answers

What is the primary role of bowel flora in nutrient absorption?

Breaking down some foods (D) Signup and view all the answers

What is the term for the study of microorganisms in a particular place or niche?

Microbiota (C) Signup and view all the answers

Who is credited with the discovery of microorganisms using a microscope?

Antony Van Leeuwenhoek (D) Signup and view all the answers

What was the primary contribution of Ignaz Semmelweis?

Introducing antiseptic hand wash (C) Signup and view all the answers

What is the term for the scientific study of microorganisms?

Microbiology (A) Signup and view all the answers

What was the significance of the 1847 hand washing intervention?

It reduced infection and mortality rates (C) Signup and view all the answers

What is the term for diseases caused by microorganisms?

Infectious Diseases (D) Signup and view all the answers

Who is credited with tracing the source of a cholera outbreak in Soho, London?

John Snow (C) Signup and view all the answers

What was the primary contribution of Fracastoro?

Proposing the idea of invisible particles causing disease (B) Signup and view all the answers

What is the term for the application of microbiology to the observation and treatment of patients?

Clinical Microbiology (D) Signup and view all the answers

What is the format of the lectures in Microbiology and Infectious Diseases?

Lectures, online modules, clinical classrooms, and PBLs (B) Signup and view all the answers

In which year of the medical program is the topic 'Bone and joint infections' covered?

Year 2 (D) Signup and view all the answers

What is the focus of the 'Strategies for respiratory infections' topic?

Respiratory infections (A) Signup and view all the answers

What is the focus of the 'Benefits and mischiefs of intestinal flora' topic?

Benefits and mischiefs of intestinal flora (A) Signup and view all the answers

What type of questions will the exam be based on?

Concepts applicable to real patients in hospitals and clinics (A) Signup and view all the answers

What is the importance of the pathology laboratory?

To diagnose and treat infections (D) Signup and view all the answers

What is the focus of the 'Host-pathogen interactions' topic?

Host-pathogen interactions (A) Signup and view all the answers

In which semester is the topic 'Introduction to microbiology' covered in Year 1?

1st Semester (D) Signup and view all the answers

What is the importance of infection control?

Everybody's responsibility (A) Signup and view all the answers

What is the term for the study of microorganisms in a particular place or niche?

Microbiota (D) Signup and view all the answers

What is the term for the scientific study of microorganisms?

Microbiology (C) Signup and view all the answers

What is the term for diseases caused by microorganisms?

Infectious Diseases (D) Signup and view all the answers

Who is credited with tracing the source of a cholera outbreak in Soho, London?

John Snow (C) Signup and view all the answers

What was the significance of the 1847 hand washing intervention?

It reduced maternal mortality rates. (D) Signup and view all the answers

What is the term for the application of microbiology to the observation and treatment of patients?

Clinical Microbiology (B) Signup and view all the answers

Who is credited with the discovery of microorganisms using a microscope?

Antony Van Leeuwenhoek (D) Signup and view all the answers

What was the primary contribution of Fracastoro?

He proposed that invisible particles cause disease. (A) Signup and view all the answers

What was the primary contribution of Ignaz Semmelweis?

He introduced antiseptic hand washing. (A) Signup and view all the answers

What was the significance of the 1796 event?

It was the year the first vaccine was developed. (C) Signup and view all the answers

What is the approximate ratio of microbial cells to human cells in the human body?

1.3:1 (B) Signup and view all the answers

What percentage of our DNA is of viral origin?

30% (D) Signup and view all the answers

What is the primary role of microorganisms in the Earth's ecosystem?

Cycling nutrients (D) Signup and view all the answers

What is the significance of microorganisms in food chains?

They are a link between producers and consumers (C) Signup and view all the answers

What is the primary importance of microorganisms in the Earth's ecosystem?

Constituting 90% of Earth's biomass (D) Signup and view all the answers

What is the role of microbes in the physical and chemical makeup of the Earth?

They affect both the physical and chemical makeup (B) Signup and view all the answers

What is the significance of microorganisms in the cycle of elements?

They cycle carbon, nitrogen, sulphur, hydrogen, and oxygen (A) Signup and view all the answers

What is the importance of microorganisms in the growth of plants and animals?

They regulate and affect the growth of plants and animals (A) Signup and view all the answers

What is the significance of microorganisms in the Earth's ecosystem?

They are ubiquitous and found in all environments (B) Signup and view all the answers

Flashcards

Human-Bacterial Cell Ratio

The approximate ratio of bacterial cells to human cells in the human body is 1.3:1.

Microbial Biomass Percentage

Microorganisms constitute approximately 90% of the Earth's biomass.