Midterm review

Question 1

psychrophilic

Answer 1

cold temperature loving

Question 2

mesophile

Answer 2

mid range temperature 20-45

Question 3

Halophile

Answer 3

tolerates high salt concentrations

Question 4

microaerophile

Answer 4

requires some oxygen but not as much as normal and grows better in the anaerobic portion of the test tube

Question 5

Aerotolerent anaarobes

Answer 5

tolerate oxygen but do not use/need it - growth is same throughout the tube

Question 6

obligate anaerobes

Answer 6

are damaged by presence of oxygen

Question 7

Aerobes and facultative aerobes usually have _____ and _____ to resist toxic forms of oxygen

Answer 7

catalase, peroxidase and superdioxide dismutase

Question 8

if anaerobes have these enzymes they are considered______.

Answer 8

aerotolerent anaerobes ( can grow in the presence of O2 but don’t use it - they ferment)

Question 9

obligate anaerobes are killed by

Answer 9

toxic oxygen forms bc they lack catalase and superdioxide dismutase enzymes

Question 10

phylogenetic analysis is done by??

Answer 10

16S rRNA and Multi-locus sequence typing

Question 11

what are hydrogenosomes

Answer 11

organelle found in some anaerobes. they oxidize pyruvate to H2, CO2 and acetate

Question 12

What are mitosomes

Answer 12

degenerated mitochondria

involved in iron-sulfur clusters formation

Question 13

conidia

Answer 13

asexual spores from fungi

Question 14

fungi cell wall made of

Answer 14

chitin

Question 15

sexual reproduction of spores

Answer 15

ascospores, basidiospores, zygospores

Question 16

Saccharomyces cerevisiae reproduce sexually with

Answer 16

Mat a and Mat alpha

Question 17

multicellular fungi= ______, unicellular fungi=_____.

Answer 17

molds, yeast

Question 18

Eukaryotes phylogeny determined by

Answer 18

MLST

Question 19

what are hyphae

Answer 19

long filament in fungus

Question 20

what are 2 types of hyphae?

Answer 20

septet and coenocytic

Question 21

Diplomonads and Parasalids are protists that are _______, ______ and have no _______ and they live in ______ habitats

Answer 21

unicellular, flagellated and have no chloroplast and live in anoxic habitats

Question 22

Girardia lambia is a genera falls under ______have 2 _____ and a ______

Answer 22

diplomonads and have two nucleus and a mitosome

Question 23

the universal phylogenetic tree was proposed by ______ and is based on the ____

Answer 23

Carl Woese and based on the rRNA data

Question 24

16S rRNA gene

Answer 24

gene that encodes for the 16s rRNA on the 30 S small subunit of prokaryotic rRNA, distinguishes differences in phylogeny