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Microbiology
Chapter 6, Exam 2
36
Biology
Undergraduate 1
05/22/2008

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Term

Fungi are E....M....

 

several times larger than b...c..

 

can specialize different cellular functions in v... o...

man species of fungi have evolved m...n... in a single cell

Definition

eukaryotic microbes

bacterial cell

various organelles

muliple nuclei

Term

Fungi are in their own kingdom in the W... s...

 

some fungi (y.. ) are single cell, most are composed of strands of cells called h...

 

all the h.. form m...

Definition

Whittaker System

 

yeasts (single celled), hypha

 

hypha, mycelium

Term

septa

 

have p... that permit c... from adjacents cell to m..

 

 

Definition

partitions between cells in each hypha

pores, cytoplasm, mingle

 

 

 

Term
coenocytic
Definition

fungi that has broken down septa and they share cytoplasm

 

Term
cell walls of fungal hypha are made up primarily of c... , a p... not found in plants
Definition
chitin, polysaccharide
Term
reproduction of fungi relies heavily on s...
Definition
spores
Term

fungi are h... they live on p..o..m..

 

produce the enzyme ... and use it to decompose c.. to yield g..m..

 

others synthesize l.., enzyme that breaks down lignin fibers of plants

Definition

heterotrophic, preformed organic matter

(they excrete enzymes into environment and absorb simple products of digestions)

 

cellulase, cellulose, glucose molecules

 

ligninase

Term
fungi store carbs as g... and plants store carbs as s...
Definition
glycogen, starch
Term

most are saprobes, whic means

 

some are parasites, meaning

 

fungal contamination common in a... foods

Definition

they live on dead organic matter

 

they thrive on living things and causes diseases

 

acidic

Term
most fungi reproduce s... and a...
Definition
sexual and asexual
Term

asexual

1. h.. undergoes f...

2. f.. become a....

3. a... develop into new h... and eventually m..

OR

c..... form

OR

 

Definition

1. hypha undergoes fragmentation

2. fragments become artrospores

3. arthrospores ... hypha... mycelium

OR

chlamydospores form

OR

 

 

Term

Through mitosis, which is when...

a s... c... reproduces two d.... c...

which develop into highly resistant s...

normally, spores form on or in specialized structure called s.... or tip of hypa called c....

Definition

a single cell reproduces two daughter cells

develop into highly resistant spores

 sporangium, condidiophore

 

 

Term

process of s... r... involves c... f... and s...f...

 

nuclei of fungal cells are h.., each nucleus contains a single set of chromosomes

 

compatible mating types.. g...

Definition

sexual reproduction, cell fusion, spore formation

haploid

gametes

Term

1. fusion of g... sex c...

2. two h... n... fuse

3. fusion results in d... c... (2 sets of chromosomes)

4. d...c... (zygote) undergoes m... which results in d..c.. , each with single set of chromosomes

5. sexually produced h..s.. germinate & form h.. then m...  

Definition

1. gamete cells

2. haploid nuclei

3. diploid cell

4. diploid cell, meitosis, daughter cells

5. haploid spores hypha, mycelium

 

Term

Four divisions of Fungi

Z

A

B

D

Definition

Zygomycota

Ascomycota

Basidiomycota

Deuteromycota

 

Term

Zygomycota

 

common black bread mold

Definition

fungi form secually produced zygospores

 

Rhizopus stolonifer

Term

Ascomycota

 

aka s..f..

 

ascus is a tiny s...c..s..

Definition

sac fungi

 

spore containing sac

 

 

Term

asci are formed in  a..

 

include p...

a... (black mold that can cause allergies and produce dangerous toxins in food)

 

Definition

ascocarps

 

penicillium

aspergillus (also used + for soy sauce, vinegar)

 

 

 

Term

pathogenic ascomycota

 

claviceps pupurae.. can cause e..d..

 

in small quantities treats m... and induce c..

Definition

infects rye gains and can cause ergot disease (nervous system disorder)

 

treat migraines, induce childbirth

 

 

Term

Basmidiomycota

 

best known members are m.. , aka b...

 

have more lengthy d... stage

Definition

mushroom, basidiocarp

 

dikaryotic (when they have two haploid nuclei)

 

 

Term

eventually , nuceli fuse to form d..n..

 

cells then undergo m...

and form sexually produces b...

Definition

diploid nuclei

meiosis

basidiospores

 

Term

basmidiomycetes also include parasites that cause

r & s diseases

Definition

rust & smut

 

Term

deuteromycota

 

method of s.... r.. n.. i

 

group includes many p...

Definition

sexual reproduction not identified

 

pathogens

 

Term

YEASTS

 

s... used extensively in b.. and b...

s. cervisiae: b...

s. ellipsoideus...

Definition

saccharomyces, baking & brewing

bread baking: s. cervisiae

brewing: s. ellipsoideus

 

 

Term

Yeasts reproduce by the asexual process of b..

or when two s...o...c.. unite and form eight smaller cells

Definition

budding

sexually oposite cells

 

Term

glycolysis is..

which yields..

Definition

the breakdown of simple sugar glucose to pyruvic acid

which yields ATP (adenosine triphosphate)

 

Term

The Krebs Cycle

p..a... is further broken down, and when o.. is present, many a... m.. are produced. At the same time, s.. m.. of c.. d.. are produced for each g..m... metabolized

Definition
pyruvic acid, oxygen, ATP molecules, six molecules, carbon dioxide, glucose molecule
Term

when o.. is insufficient, k... c... comes to a halt and yeast cells begin to f...

 

yeast change p... a.. into c..d.. and e..a..

Definition

oxygen, krebs cycle, fermentation

pyruvic acid, carbon dioxide and ethyl alcohol

 

 

Term

vaccine for h.. b.. is produced by m..y.c..

 

yeast artificial chromosomes (YAC) are

Definition

hepatitis B, modifying yeast chromosomes

 

artificial nucleic acid molecules

Term

Lichens are organisms resulting from a... beween f.. and p... partner

 

photosynthetic partners usually c.. or u..g..a..

fungal partner usually from A... division

Definition

association, fungus and photosynthetic partner

cyanobacteria, unicellular green algea

Ascomycota

Term
lichens have minimal requirements for l..., a..., n...
Definition
light, air, nutrients
Term

Mycorrhizae are m... a... between f... and v..p..

fungal cells supply plants with m..n..

plant supplies fungus with p... of p...

Definition

mutualistic associations between fungi and vascular plants

more nutrients

products of photosynthesis

 

Term

Fungi and human diseases

 

yeast infection and thrush (AIDS) caused by c.. a...

 

organism that has variability in form is d..

Definition

candida albicans

 

dimorphic

 

 

 

 

Term

cryptococcosis .. dangerous disease of l.. and m..

 

ringowrm also called t..

Definition

lungs, meninges

 

tinea

 

 

Term

bacterial chromosome exists f.. in c... without any p... support or s.. m..

Definition
freely, cytoplasm, protien, surrounding membrane
Term

locus are sites distributed along the c... to which g... a.. can be traced

 

each consists of one or more g..

Definition

chromosome, genetic activity

 

genes

 

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