microbes

Question 1

carl woese

Answer 1

3 domain system(Monera, Protista, FUngi) , comparision of rRNA

Question 2

5 domain system

Answer 2

Monera, Protista, Fungi, Animalia, and Plantae. (viruses and other acellular infectious agents, which
have their own classification system)

Question 3

Domain Bacteria

Answer 3

single celled, peptidoglycan,
most are prokaryotic (exception : planctomycetes)
exist on human body-immune system, abundant in nature, also cause disease

Question 4

plague (Black Death)

Answer 4

an arthropod-borne disease ( bacteria)

Question 5

Domain Archea

Answer 5

distinctive rRNA
sequences, lack of peptidoglycan in their cell walls, and unique
membrane lipids.
some unusual metabolic characteristics

Question 6

Domain Eukarya

Answer 6

protists or fungi + animals + plants

Question 7

protists

Question 8

fungi

Question 9

mycorrhizae

Answer 9

fungi association w plant roots
provide nutrients to root

Question 10

Viroids and satellites

Answer 10

infectious agents composed
only of RNA

Question 11

virus

Answer 11

Viruses are acellular entities that must invade a
host cell to multiply. The simplest viruses are composed only of
proteins and a nucleic acid

Question 12

prions

Answer 12

infectious agents composed only of protein, are responsible for
causing a variety of spongiform encephalopathies such as scrapie and “mad cow disease

Question 13

early cells may have been

Answer 13

liposomes containing RNA molecules

Question 14

evidence that supports the RNA world hypothesis:

Answer 14

the
fact that the energy currency of the cell, ATP, is a ribonucleotide
and the more recent discovery that RNA can regulate gene expression

Question 15

LUCA

Answer 15

Last Universal Common Ancestor

Question 16

endosymbiotic

Answer 16

A symbiotic relationship where one organism lives inside the other

Question 17

mitochondria, chloroplasts, and hydrogenosomes originated by

Answer 17

endosymbiosis

Question 18

mitochondria and chloroplasts contain

Answer 18

DNA and ribosomes (confirmed by SSU analysis)

Question 19

hydrogen hypothesis

Answer 19

?

Question 20

species

Answer 20

group of interbreeding or potentially interbreeding natural
populations that is reproductively isolated from other groups. but baccteria and archea

Question 21

strain

Answer 21

descendants of a single, pure microbial culture.

Question 22

Biovars

Answer 22

variant strains that differ in biochemical or physiological properties

Question 23

morphovars

Answer 23

strains that differ morphologically

Question 24

serovars

Answer 24

distinct properties that can be detected by anitbodies

Question 25

pathovars

Answer 25

pathogenic strains that differ in the plants they cause disease in