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88 Cards in this Set

  • Front
  • Back
What kingdom are algae in?
It's kingdom protista
Algae optain energy how?
they are photosynthesizing photo autotrophs that use chlorophyll.
What is the exception of seaweed,
ALthough algae, they are not unicellular, they are multicellular.
Where do algae live?
The live in aquatic environments.
What are the 2 algae divisions?
Planktonic and Seaweeds
What are some families of seaweeds? 3
Phaeophyta the brown algae
Rhodophyta the red algae
Chlorophyta the green algae
What are some families (2) of planktonic floating algaes?
Chrysophyta the diatoms,
dinophyta or pyrrophyta the dinoflagellates.
Phaeophyta
commonly called? Color? What they make?
Representative species?
Brown, because of fucoxanthin. Algin is obtained from them.
Sargassum
Rhodophyta what are they also called? What color? What do they contain? What is obtained from them? (2 things)
Rep?
Reddish because of phycobilin. Agar and carrageenan are obtained from them.
Gelidium
Chlorophyta
what color? rep?, ancestors?
What is unique to them as opposed to red and green algae?
They are green algae, unicellular with cellulose cell walls
Spyrogyra (pond scum)
Ulva (sea lettuce)
ancestors of modern terrestial plants
and have freshwaterforms unlike other algae.
algin is obtained from?
Sargassum, phaeophyta seaweeds. Brown
Where can i get some Agar for my lab experiments?
buy it, or obtain it from Gelidium, which are red algae rhodophyta of the Seaweeds Division
Where is the food additive carrageenan obtained?
From Gelidium; a red algae of the rhodophyta, a seaweed.
Chyrsophyta
diatoms, w/ cell walls of silicon dioxide
really complex cool shapes
Dinophyta or pyrrophyta
dinoflagellates make neurotoxins during blooms called red tides.
Make most of the O2 on earth, and are primary producers.
Fossil fuels are largely remians of these two groups.
Where do we get fossil fuels?
From dinophyta or Pyrrophyta.
Red tide
a neurotoxin that is released during spring blooms by dinoflagellates, dinophyta pyrrophyta.
Where does most of the O2 on earth come from
dinoflagelletes Dinophyta or pyrrophyta
What possese a cell wall of silicon dioxide?
Chrysophyta
Protozoa
of kingdom protista, animal like protists that are chemoheterotrophs
unicelled
have symbiotic relationships with animals (termites)
What has symbiotic relationships with termintes?
Protozoa
4 phyla of protozoas.
sarcodina: amoeba
mastigophora: flagelletes
ciliophora: the ciliates
apicomplexa: obligate intracellular parasites
apicomplexa
malaria: obligate intracellular parasites phylum of protazoa
ciliophora
paramecium
Generally not medically important, use cilia to move
Mastigophora
giardia
causes giardiasis (bever fever)
shits, campers get it.
Sarcodina
Amoeba: Entamoeba causes amoebic dysentery
Life cycle of a protozoan
ie Plasmodium: sexual reproduction, in Anopheles mosquito.
Mosquito bites someone and sporozoites enter the blood and travel to the liver.
They mlitiply by schizogeny in the liver and new cells are called merozoites, that enter the blood and infect rbcs.
As they grow asexually rbcs rupture releasing more merozoites and toxins which cause the fever and chills associated with the disease.
*Some cells called gametocytes formed and can be picked up by other mosquitoes to repeat the cycle.
Definite vs Intermediate host
def: harbors the sexual stage, intermediate is because of asexual reproduction.
sporozoites
infective particles that enter the blood through mosquito bites
which mosquitoes do plasmodiums infect?
Anopheles mosquito
schizogeny
in the liver where plasmodium multiply: the process)
merozoites
new blood cells released by rbc's rupturing or the newly multiplied cells through schizogeny.
FUNGI
aerobic or facultatively anaerobic chemoheterotrophs
decomposers, some pathonogenic.
Yeasts are only unicellular,
cell walls of chitin
4 divisions of FUngi
zygomycota
ascomycota
basidiomycota
deutromycota
zygomycota are called what? A rep? What do they produce?
conjugative fungi:
Rhizopus: black bread mold
make zygospores sexually, union of two compatible strands of fungi (hypae)
Ascomycota
aka
rep x 2
sproes?
sac fungi
neurospora a mold
saccharomyces a yeast
sexual ascospores are enclosed in sac like ascus
how are divisions in the fungi classified?
based on the type of sexual spore they make
What is Rhizopus
common black bread mold
zygomycota
Saccharomyces
yeast, ascomycota
neruospora
ascomycota: mold
What makes common bread mold?
Rhizpus
Basidiomycota
club fungi: mushrooms sexual basidiospores are present at the tips of stalk like apendages called basidia
Deuteromycota
doesn't make sexual spores. But if they do they are recategorized.
ascus
hyphae
basidia
divisions and the aka.
ascomycota: sac fungi
zygomycota: conjugation fungi
basidiomycota: club fungi
Yeasts important for..
make bread beer wine spirits..
Link between fungus and algae symbiosis
lichens.
4 phylum of Animalia
Platyhelminthes: flatworms
nematoda: roundworms
rotifera: rotifers
Arthropoda; as vectors.
Platyhelminthes
phyla of the kingdom animalia
flatworms
Trematodes or flukes attach to host and suck fluids
Cestodes or tapeworms exist in GI and eat hosts food
Nematoda
phyla of Kingdom animalia
Nematoda: roundworms
Not parasites very ubiquitous in soil and water.
:pinworms and hookworms are exceptions
rotifera
a phyla of kingdom animalia
free living frehwater organisms also wheel creatures.
wheel creatures
what phylum
rotifers
non parasitic roundworms, which phylum
Nematoda
What phylum are cestodes and trematodes?
They are of platyhelminthes
Arhtropoda
phylum of kingdom animalia that include
insecta and arachnida
insecta ones we study in class
and arachnida ones we study in class. What are the main causations of the disease associated with these creatures?
Insecta mosquito/malaria anopheles, and the protozoa: plasmodiums
arachnida ticks: lyme disease : bacteria of the spirochetes: borrelia
Some disease that mosquitoes may transmit?
Dengate malaria westnile and yellow fever
Virus definition:
Non living obligate intracellular parasite
or
simplest living things there are depends...
What do viruses always contain?what can they sometimes have? (made of carb,lipids, and proteins. like a plasma membrane?)
Always have DNA or RNA and a protein coat( capsid) and sometimes have envelope.
Host range
the types of cells in a particular species that a virus can infect.
Range of size to see viruses with e- microscope.
20-1000nm in length.
Virion
mature, infective partiple consisting of nucleic acid and protein coat: and envelope depending on species.
Viral arrangements of nucleic acids can be....
RNA or DNA, single or double stranded, linear or circular.
CAPSID
protein coat with subunits of capsomeres
If the virus has an envelope how does it attach to it's prey?
spikes..
Helcical viruses
capsomeres assembled in a helical config. long rods, capsids are hollow cylinders
polyhedral
many sided: capsid is usually icosahedron ( 20 faces) like the bacteriaphage.
Complex Viruses
polyhedral head and complex tail bacteriophages
Which viruses are usually enveloped?
animal viruses
General morphology of viruses
Helical
Polyhedral
Envelooped
Complex
Taxonomy of viruses.
based type of nucleic acid, life cycle and morphology
A viral species is defined as
a group of viruses sharing the same genetic info and ecological niche (host range)
RNA viruses
3 of them
HIV
Polio
Rabies
DNA viruses 2 of them
HPV
HSV
HSV
herpes simplex virus
Family herpesviridae Genus simplex virus
A DNA virus
HPV
DNA Virus
human papillomavirus
Family Papvaviridae
Genus: papillomavirus
Poliovirus
RNA virus
Family picornaviridae
Genus Enteroviridae
Rabies virus
RNA virus
Family rhabdoviridae
genus Lyssavirus
HIV
human immunodeficiency virus RNA Virus
Family Retroviridae
Genus Lentivirus
Bacteriophages
means bacteria eater, carry genome as DOUBLE stranded
have complex morphology
Lysogenic cycle
phage incorporates nucleic acid in host cell chrom. and remains dormant for a period of time
Lytic cycle
phage causes the lysis and death of host bacteria as it replicates.
Which phages are lysogenic?
Temperate
Which phages are Lytic
virulent
What type of phage is lambda?
it is temperate and uses lysogenic
What type of phages are T2 and T4?
they are virulent and use lytic
Stages of lytic
attach, w tail fibers at receptor sites
penetrate: tail sheath forces Phage DNA capsid stays outside
Biosynthesis: transcription, translation, and replication of viral DNA
Maturation: new phage DNA and spasids assemble into virions
Release lysozyme no cell wall, new virions released.
Stages of lysogenic
attach
penetrate
no bio synth yet..
Viral DNA recombines with bacterial chromosome to form a prophage. this replicates with bacterial DNA until it gets bored and then completes lytic stages.
Prophage
during the lysogenic cycle when Viral DNA recombines with bacterial DNA.