Chapter 1 - The Microbial World Flashcards
All living organisms are either ___________ or ___________ (how they were previously classified).
prokaryotes, eukaryotes
What are the 3 domains?
- eukarya
- archaea
- bacteria
Comparing sequences of ____ genes in different organisms led to a new scheme of organizing life.
rRNA
Which of the domains has a nuclear membrane?
eukarya
which of the domains has multiple distinct membrane-bound organelles?
eukarya
which domain has a cell wall constructed of peptidoglycan?
bacteria
which domains have histones?
eukarya and archaea
_______ has DNA and RNA that mutates & evolves despight being inert outside of the host cell.
viruses
Microbes dominated the planet for approximately ___ billion years (multicellular fossils date to about 0.5 bya).
3.6
_________, a combination of RNA and enzymes, could serve the purpose of storage and catalyzing reactions.
ribozymes
The function of _________ suggests that RNA could have been used as a major informational molecule before DNA.
ribozymes
A single lipid layer known as a _______ may have been an early for of plasma membrane.
micelle
RNA and micelles come together to form a primitive cell using RNA for storing genetic info and coding, called a ________.
probiont
_______ disproves the idea of spontaneous generation.
Louis Pasteur
____ created postulates (rules) that made it possible to determine which microbes caused which diseases.
Koch
