Lecture 1 Flashcards
Microorganisms
organisms too small to be seen without the unaided eye
Microorganisms
Rapidly growing cell, specifically pathogenic
Germs
Two things knowledge of microbes helps humans with
Prevent food spoilage. Prevent disease occurrence
Beneficial actions of microbes
Decompose organic waste, production of fermented foods (wine, cheese, bread), generate organic molecules and O2 by photosynthesis
How do microbes generate organic molecules and O2
Photosynthesis
Destructive actions of microbes include
Spoilage of food, disease causing, can be toxic
Who established the system of scientific nomenclature including rational naming of all organisms and binary nomenclature
Linnaeus
How many names does each organism have?
2
What are the 2 names of each organism
the genus and specific epihet
What type of species are humans
homo sapiens
Who discovered E. coli
Theodor Escherich
No cell or nucleus
Prokaryotes
Bacteria and Archaea are examples of
Prokaryotes
Defined nucleus
Eukaryotes
Fungi is an example of
eukaryotes
protozoa and algae are examples of
eukaryotes
Non cellular infective entities
viruses
Prokaryotes with a different cell wall and unique rRNA signatures that are frequent in extreme environments
Archaea
Unicellular prokaryotes, peptidoglycan cell walls
Bacteria
How is bacteria reproduced?
Binary fission
Mostly immobile, multicellular with diverse cell types, use organic chemicals for energy
Fungi
May be motile via pseudopods, cilia, or flagella. Unicellular eukaryotes, absorb or ingest organic chemicals
protozoa
Algae are what kind of organisms? Prokaryotes or eukaryotes?
eukaryotes
What is a eukaryote that uses photosynthesis for energy with cellulose cell walls and produce molecular oxygen and organic compounds? Aquatic habitats
Algae
