Intro to Microbiology

Question 1

Who disproved the Spontaneous Generation theory?

Answer 1

Louis Pasteur

Question 2

What is the atmosphere during Archaean and Hadean eon wherein there is no oxygen, Ozone layer is not yet formed and there is a direct exposure to ultraviolet rays?

Answer 2

Anoxic atmosphere

Question 3

Enumerate the impact of microbiology on humans in the field of Agriculture.

Answer 3

Mycorrhizar nodes, Bt Corns, Phytopathogens

Question 4

What is the study of microorganisms and their impact on other living things?

Answer 4

Microbiology

Question 5

Who developed the petri dish, a standard tool for obtaining pure cultures?

Answer 5

Julius Richard Petri

Question 6

What is the first actual life form?

Answer 6

Microbial Life form

Question 7

Enumerate the diversity of microorganisms

Answer 7

Spores of Aspergillus, Yeast cells, Basidiomycetes, Bacterial cells, Bacterial colonies, Microbiome on Human Body

Question 8

When did the Great Oxidation Event happened?

Answer 8

Proterozoic eon

Question 9

What are the positive and negative impact of microbiology on human in the food industry?

Answer 9

Positive impact - Fermented food

Negative impact - Food spoilage, Foodborne diseases (very negative impact)

Question 10

Why is Antibiotic resistance bad?

Answer 10

Because when we are sick, we tend to not take the prescribed dosage of antibiotic. This results in empowering the bacteria, making it impossible to kill.

Question 11

What theory states that all living organisms are composed of cells?

Answer 11

Cell theory by Robert Hooke

Question 12

__________ is ubiquitous, tiny organisms that cannot be seen by the naked eye and are commonly called germs

Answer 12

Microorganisms or Microbes

Question 13

Who constructed practical microscope to observe microbial life forms?

Answer 13

Anton Von Leeuwenhoek

Question 14

What eon did the formation of the earth and the origin of life happened?

Answer 14

Hadean

Question 15

What is the impact of microbiology in the industry field?

Answer 15

Biogas as Power source, Drugs, and Antibiotic Resistance

Question 16

Who introduced the method of hand washing?

Answer 16

Ignaz Semmelweis

Question 17

What happened during the origin of Anoxygenic photosynthesize and Oxygenic photosynthesize?

Answer 17

Oxygen molecule was created

Question 18

Why was the Spontaneous Generation Theory disproved?

Answer 18

Pasteur replicated the situation wherein there is left meat in a container that is left open, in a container that is tightly closed, and in a container with mesh cover. After some time, maggots and flies began appearing and swarming around the container that is left open, maggots and flies began appearing and swarming around the mesh cover on the container with a mesh cover while no maggots and flies appeared and swarm around the meat in a container that is tightly closed. This concluded that life could not spontaneously arise from a nonliving matter.

Question 19

Who introduced the aseptic technique in order to kill and prevent from microbial infection of surgical patients?

Answer 19

Joseph Lister

Question 20

Enumerate what are the impact of microbiology on diseases

Answer 20

Phytopathogens, Human Pathogens, COVID-19 Pandemic

Question 21

Who started formulating Cell theory?

Answer 21

Robert Hooke

Question 22

What year did the hand washing method become standardized?

Answer 22

1980

Question 23

What do the Germ theory of Disease or Koch’s Postulate states or proposes?

Answer 23

That some diseases are caused by microorganism

Question 24

Who discovered the causative agent of diseases like anthrax, cholera, and tuberculosis?

Answer 24

Robert Koch

Question 25

Why did Ignaz Semmelweis proposed the hand washing method?

Answer 25

He noticed that the hospital run by doctors have high death rate on mothers who gave birth and their children compared to the midwifery run by midwives. He noticed that it is because of cadavers passed on to mothers and infants from doctors who also performs surgeries and autopsies. He proposed this method and the death rate dropped. However since doctors felt they were blamed for the death of mothers and their children, they rebelled and did not use the hand washing method until after a plague/epidemic

Question 26

Explain the Koch's Postulate

Answer 26

A microorganism is obtained from an individual or organism with a disease. This microorganism must be isolated from those who are affected by it but not those who are not and is still alive. Then, it will will introduce to a healthy individual or organism causing a disease. A microorganism from the healthy individual or organism should be obtained and be re-isolated. This microorganism should be found to be identical to the original microorganism.