Micro lecture 20

Question 1

Microbial hyperthermophiles grow above 80 degress C True or false

Answer 1

true

Question 2

what are aquificota and thermotogota ?

Answer 2

these are phylums that hypertheromophiles

Question 2

produce water as by product

Answer 2

aquifex

Question 3

Chemlithotrophs that acapture energy by oxidizing hydrogen, thiosulfatre and sulfur with oxygen as a terminal electron acceptor

Answer 3

aquifex

Question 3

what genus are able to grow in marine hydrothermal systems and terrrestrial mineral springs and have outer sheathlike envelope ?

Answer 3

Thermotoga

Question 4

Chemoorganotrophs ?

Answer 4

organism that obtains energy from the oxidation of reduced organic compounds

Question 5

what are the two families that belong to the phylum Deinococcota?

Answer 5

Dienococcaceae and thermaceace

Question 6

Profile for Deinococcus

Answer 6

Spherical/rod shape
nonmotile
tertrads
Extremophiles

Question 7

Which nonproteo gram negative bacteria is notable for resistance to radio activity ?

Answer 7

Deinococcaceace

Question 8

what nonproteobacteria can eat nuclear waste and survive in a vacuum of space ?

Answer 8

Dienococcaceace

Question 9

Contaims T.aquatics

Answer 9

Thermales

Question 10

Which gram negative nonproteobacteria can carry out oxygenic photosynthesis ?

Answer 10

Cyanobacteria

Question 11

Cyanobacteria have the ability to use water as an electron donor, but are unable to fix carbon to generate oxygen?

Answer 11

False they can do both

Question 12

Chloroplast are cyanobacteria? t or f

Answer 12

true

Question 13

Cyanobacteria are unable to enagage in symbiotic relationships with fungi and cannot fix nitrogen? t or false

Answer 13

false
they fix nitrogen
and can have symbiotic relationships

Question 14

Cyanobacteria use chlorophyll,carotenoids, phycobilin and contain thylakoids

Answer 14

true

Question 15

What type of nonproteobacteria contain carboxysomes?

Answer 15

cyanobacteria

Question 16

what are carboxysomes?

Answer 16

they are particularly found in cyanobacteria and are comparts that store carbonic anhydrase and Rubisco

Question 17

What nonproteobacteria employ CO2-concentration mechansims to facilitate high rates of carbon fixation?

Answer 17

cyanobacteria

Question 18

Heterocysts profile

Answer 18

specialized cells for Nitrogen fixation
produced when organism is nitrogen is deprived

Question 19

what is unique about heterocysts cell wall?

Answer 19

it prevents the O2 to diffuse into the cell that woul inactivate nitrogenase

Question 20

how are we able to distinguish between the different prochlorophytes ?

Answer 20

we can do this by testign them for the presence of chlorophyll a and b and lack of phycobilins?

Question 21

which cyanobacteria are the only ones to possess chlorophyll b?

Answer 21

prochlorophytes

Question 22

found in phylum chlorobiota and are obligate anaerobs, and photolithoautotrophs?

Answer 22

Green sulfur bacteria

Question 23

which nonproteobacteria that are gram negative use H2S, elemental sulfur and H2 as electron sources ?

Answer 23

green sulfur bacteria

Question 24

What have the ability to perform anoxygenic photosynthesis?

Answer 24

green sulfur bacteria

Question 25

describe the bacterial structure of green sulfur bacteria

Answer 25

chlorosomes FMO

Question 25

Green sulfur bacteria are able to produce o2 as a by product? t or f

Answer 25

false

Question 26

ellipsoidal vesicles attached to plasma membrane that contain photosynthetic pigments with lipid monolayer are called

Answer 26

chlorosomes

Question 27

Once energy is captured in the chlorosomes where is the energy leaded?

Answer 27

it goes to the FMO where it then transfers energy to reaction center

Question 28

phylum Chloroflexota are home to that what bacteria?

Answer 28

Green non sulfur bacteria

Question 29

What phylum can perform anaerobic ammonium oxidation?

Answer 29

Phylum planctomycetes

Question 30

The PVC superphylum stand for ?

Answer 30

Verrucomicrobiota Chlamydiota Planctomycetota

Question 31

What are anammoxosomes?

Answer 31

They belong to planctomycetes and are membrane bound organelle that occupies the cell volume

Question 32

Anammox reaction

Answer 32

localized anaerobic ammonia oxidation

Question 33

Obligate intracellular parasites

Answer 33

Phylum Chlamydiae

Question 34

what is unique about the cell wall of planctomycetes ?

Answer 34

cell wall lacks peptidoglycan

Question 35

How are planctomycetes able to attach to surfaces

Answer 35

throuh stalk and hold fast

Question 36

What is the unique reproduction associated with chlamydiae?

Answer 36

EB( elementary bodies) attach to host cell and produced RB RB (reticulate body) reproduce via Binary fission and lysed to release EB

Question 37

Chlamydial are able to catabolize carbohydrates, synthesize ATP or NAD+. T o F

Answer 37

False : they cannot do this an must rely on the host ATP

Question 38

What chemoorganotroph bacteria have slender long but flexible helical shape?

Answer 38

Spirochaetota

Question 39

What is the periplasmic Flagella?

Answer 39

Extend from both end of the cylinder and wrap around PDG in spirochaetota - Gives the abilit for motiliy with corkscrew like movement

Question 40

Symbiotic association between spirochetes and other organisms can cause diseases like ?

Answer 40

lyme disease and Phase variation

Question 41

What nonproteobacteria produces anaerobic non-spore-forming rods

Answer 41

bacteroides

Question 42

Can be found in human intestinal tract and animal rumens?

Answer 42

Bacteroides

Question 43

How are bacteroides abe to benefit thier host?

Answer 43

degrade cellulose,pectins and complex carbohydrates

Question 43

Has the characteristics spindle or football shape that can be obligate/facultative anaerobes and opportunisitc infections....

Answer 43

Fusobacteriota

Question 44

what is an opportunistic pathogens?

Answer 44

Some can be pathogen when presented with right circumstances

Question 45

SRB stands for ?

Answer 45

sulfur reducing bacteria

Question 46

SRBs have what ability ?

Answer 46

reduce sulfur and other oxidizing compunds to H2S2

Question 47

Dissimilatroy sulfate reduction?

Answer 47

sulfur atoms not incorporated into the biomass

Question 48

Genus Bdellovibrio is aerobic, gram negativeand curved rods with polar flagella

Answer 48

true

Question 49

Bdellovibrio is unique in that is preys on other gram negative bacteria

Answer 49

true

Question 50

contain complex life cycels that include fruiting bodies and formation of myxospores

Answer 50

Myxobacteria