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Bio lab 1
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19
Biology
Undergraduate 2
05/24/2011

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Term
Three Domains of Life
Definition
Archaea, Bacteria, Eukarya
Term
Archaea
Definition
-- prokaryotes that live in harsh environments and have
characteristics to suit those environs
-- includes thermophiles, halophiles and methanogens
-- in the 5 Kingdom system are known as the Archeaobacteria of the
Kingdom Monera
-- lipid bilayer, of cell membrane, composed of branched
hydrocarbon tails bonded to glycerol backbone via ether (not
ester) bonds. Phosphates, sulfates or sugars compose the
polar portions of these lipids
-- some have histone proteins
-- ribosomes same size as bacteria but, shape is highly variable
Term
Bacteria
Definition
-- all of the classic bacteria --> bacilli, cocci, spirochetes
-- includes pathogens (to humans, plants, insects, etc.)
-- includes the cyanobacteria (blue green algae):photosynthetic
bacteria
Term
Eukarya
Definition
-- limited to all of the eukaryotes
-- defined by having nuclei and membrane bound organelles
Term
Kindoms of Eukarya
Definition
Plantae, Fungi, Animalia, Monera, Euglenozoa, Alveolata, Strmenopila, Rhodophyta, Clorophyta
Term
Plantae
Definition
multicellular organism that usually perform cyclic photophosphorylation and carbon fixation of CO2.
Term
Fungi
Definition
unicellular or multicellular heterotrophs; multicellular is dikaryotic;
digest then ingest; chitinous cell walls; generate asexual and sexual spores
-- about 80,000 species, many are decomposers
-- includes the molds, mildews, yeasts, cup fungi, shelf fungi, gilled
mushrooms, stink horns, morels, truffles
Term
Animalia
Definition
multicellular heterotrophs without cell walls, most have nerve & muscle
tissue and undergo gastrulation
Term
Porifera
Definition
-- the sponges
-- no true tissues so, simplest animals
Term
Cnidaria
Definition
-- the jellyfish
-- corals & anemones (polyp body style)
-- corals secrete CaCo3, feed with tentacles, many have
dinoflagellate symbionts
Term
platyhelminthes
Definition
the flatworms
Term
Nematoda
Definition
un-segmented worms
Term
Mollusca
Definition
includes: snails, clam, and mussels, squids, octopi, and nautiluses
Term
Annelida
Definition
Includes earthworms, leeches, and marine worms
Term
Echinodermata
Definition
exclusively marine, includes: sea stars sea urchins and sand dollars
Term
Chordata
Definition
obscure invertebrates with notochord, gills, and a
dorsal, tubular nerve cord; also includes the vertebrates
Term
plesomorphy
Definition
a primitive ancestral character state shared with other taxa.
Term
apomorphhy
Definition
a derived character state of taxon that has evolced only within the taxon in question.
Term
synapomorphy
Definition
a derived character shared by two or more taxa.
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