IM Flashcards
a systematized body of knowledge based on factual evidence comes from the Latin word scientia meaning “to know”
Science
study of microorganisms
Microbiology
are organisms too small to be seen by the unaided eye.
Microorganisms (mo’s)
Microbiology revolves around 2 interconnected themes:
(1) understanding the living world of microscopic organisms; and
(2) applying our understanding of microbial life processes for the benefit of humankind and planet Earth
is defined as the study of how microbial cell’s structures, growth and metabolism function in living organisms. It includes the study of bacteria, fungi, viruses and parasites.
Microbial physiology
is a subject area within microbiology and genetic engineering. Also, studies microorganisms for different purposes using the organisms’ whole genome or some specific genes.
Microbial genetics
comprises of biochemical reactions in microbial growth, various modes and mechanisms of pathogenesis required in causing infection/ diseases within the host. It focuses on the study of microbial growth, microbial cell structure, microbial metabolism, advanced functions as well as interactions of biological macromolecules like proteins, fatty acids and nucleic acids which are the fundamental aspect and basis of functions sustaining life.
Microbial biochemistry
Studies natural
phenomena
Natural Science
Social life and relations
between human beings
Social Science
study of inorganic
phenomena
Physical Science
study of organic or living
phenomena
Biological Science
Basic Science
Cytology
Histology
Anatomy
Morphology
Physiology
Taxonomic Science
Botany
Bacteriology
Mycology
Virology
Zoology
Applied Biology
Medicine
Nursing
Dentistry
Veterinary Med
Horticulture
‒Microbiology uses and develops tools
for probing the fundamental
processes of life
‒ Model organisms/systems
As a basic biological science
‒microbiology is at the center of many
important aspects of human and
veterinary medicine, agriculture, and
industry.
✓soil fertility and domestic animal welfare
✓production of antibiotics and human
proteins
As an applied biological science
•Smallest forms of life but constitute bulk of
biomass of earth.
Microorganisms
• Carry out many necessary chemical reactions
for higher organisms
Microorganisms
•Evolution of oxygen
Microorganisms
• Proposed the theory of
spontaneous generation
• Also called abiogenesis
• Idea that living things can arise
from nonliving matter
• Idea lasted almost 2000 years
Aristotle (384 –322 BC)
• For centuries, people based their beliefs on their
interpretations of what they saw going on in the world
around them without testing their ideas
• They didn’t use the scientific method to arrive at
answers to their questions
• Their conclusions were based on untested
observations
Spontaneous Generation
Observation: Every year in the spring, the Nile River flooded
areas of Egypt along the river, leaving behind nutrient-rich mud
that enabled the people to grow that year ’ s crop of food.
However, along with the muddy soil, large numbers of frogs
appeared that weren’t around in drier times.
• Conclusion: It was perfectly
obvious to people back then
that muddy soil gave rise to
the frogs
Observation: In many parts of Europe, medieval farmers stored
grain in barns with thatched roofs (like Shakespeare’s house).
As a roof aged, it was not uncommon for it to start leaking. This
could lead to spoiled or moldy grain, and of course, there were
lots of mice around.
Conclusion: It was
obvious to them that the
mice came from the
moldy grain.