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39 Cards in this Set
- Front
- Back
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capsomere
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protein subunits
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bacteriophage
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virus that infects bacteria T4
head, tail sheath, and tail fiber |
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gram postive bacteria
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simpler walls large amount of peptidoglycan
crystal violet when stained |
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viral envelope
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membranous envelope surrounds the capsids of influenza viruses
contain host celll phospholipids and glycoproteins |
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influenza virus
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outer layer studded with glycoprotein spikes membranous envelope
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peptidogyclan
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network of modified sugar polymers cross-linked by short polypeptides
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adenovirus
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icosahderal capsid with a glycoprotein spike at each vertex
infect respiratory tract of animals |
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tobacco mosaic virus
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helical capsid overall shape of rigid rod
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glycoprotein
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proteins with carbs. covalently attached
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Excavata
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Diplomonads, Parabasalids, Euglenozoans
charcterized by cytoskelton |
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Chromalvelota
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Alveolates, Stramenoplies
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Rhizaria
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Forams, raidolarians
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Archaeplastida
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red algae, green algae
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Unikonta
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amoebozoans, opisthokonts
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What are the five supergroups of protists?
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Arhaeplastida,Chromalveolata, Excavata, Rhizaria, Unikonta
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Protist
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unicellular eukaryotes
can reproduce asexually or sexually |
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Diplomonads
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live in anaerobic environments, lack plastids, and have modified mitochondria-mitosomes often parasites giardia intestinalis
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Parabasalids
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live in anaerobic environments, lack plastids, and have modified mitochondria-hydrogenosomes
include trichomonas vaginalis yeast infection |
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Euglenoza
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spiral or crystalline rod of unknown function inside their flagella includes the kinetoplastids and euglenids
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kinetoplastids
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single mitochondrion organized mass of DNA- kinetoplast includes trrypanosoma causes sleeping sickness in humans
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euglenids
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one or two flagella that emerge from a pocket at one end of the cell
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Alveolata
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membrane bounded sacs just under the plasma membrane includes dinoflagellates, apicomplexans and ciliates
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Dinoflagellats
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RED TIDE
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Apicomlexans
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parasites of animals
contains apex specialized in penetrating host Plasmodium bacteria causes malaris |
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Stramenopila
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hairy flagella paired with smooth flagellumd
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Diatoms
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unicellular algae with unique two part glass like wall of hydrated silica
usually reproduce asexually |
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brown algae
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Largest and most complex algae
multicellular kelp |
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AOG
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alternation of multicellular haploid and diploid forms
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heteromorphic
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generations structurally different
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isomorphic
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generations look similar
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oomycetes
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water molds, white rusts and downy mildews
have filaments(hyphae) facilitate nutrient uptake |
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Foraminiferans
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porous generally multichambered shells called tests
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Radiolarians
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use pseudopodia to engulf microorganisms through phagocytosis
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What are land plants descended from?
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green algae
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Red algae
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reddish due to an accessory pigment called phycoerythrin
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Green algae
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named for grass green chloroplasts
two main groupd chlorophytes and charophyceans |
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Amoebozoans
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amoebahave lobe or tube shaped pseudopodia
slime molds |
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Protist symbionts benefit their hosts
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dinoflagellates-nourish coral
hypermastigotes-digest cellulose in the gut of termites |
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lytic cycle
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phage reproductive cycle that culminates in the death of the host cell
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