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Diversity
Unit on Diversity of Living Things + Plantae
40
Biology
11th Grade
06/11/2008

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Term
Phylogeny
Definition
Grouping of organisms according to the extent to which they are related
Term
Biosphere
Definition
any part of the Earth inhabited by living organisms
Term
Linnean system
Definition
System of taxonomy grouping organisms by structural similarities, with every organism assigned a Latin name so all scientists could understand it, and with a system of binomial nomenclature where every organism has a name with 2 parts, the Genus and the Species
Term
Taxon
Definition
One grouping in the Linnean system
Term
List distinguishing characteristics of Kingdom Eubacteria
Definition
Prokaryotic "true bacteria" meaning the stuff we're familiar with, like the bacteria living in our bodies.
Term
List distinguishing characteristics of Kingdom Archaeabacteria
Definition
Ancient prokaryotic bacteria living in harshest environments on the Earth, like very salty (halophiles) or very hot (thermophiles) places
Term
List distinguishing characteristics of Kingdom Protista
Definition
Mostly single celled eukaryotic organisms, which are directly evolved from prokaryotes
Term
List distinguishing characteristics of Kingdom Fungi
Definition
Eukaryotes which are very similar in structure to Plantae EXCEPT that cell walls DO NOT contain cellulose but chitin and they cannot carry out photosynthesis. Include moulds, yeasts and mushrooms. Usually metabolize outside the organism by releasing digestive enzymes onto the food.
Term
List distinguishing characteristics of Kingdom Plantae
Definition
Multi-cellular eukaryotes whose cell walls are made of cellulose, and have the chloroplasts necessary for photosynthesis. Include mosses, ferns, and seed plants. Cannot locomote independently of outside stimulus
Term
List distinguishing characteristics of Kingdom Animalia
Definition
Multi-cellular, eukaryotic organisms who are heterotrophic and whose cells have no walls. Divided into vertebrates and including all animals. Can locomote independently.
Term
Cocci
Definition
Round, spherical bacteria
Term
Describe the shape and formation of streptobacillus bacteria
Definition
Chains of rod-shaped cells
Term
Distinguishing characteristics of prokaryotic cells
Definition
Prokaryotes have no nuclear-bound membranes, and are almost always unicellular.
Term
Obligate anaerobic bacteria
Definition
CANNOT be exposed to oxygen or they will die
Term
Cyanobacteria
Definition
Contain chlorophyll/blue equivalent allowing for photosynthesis
Term
Nitrogen fixing bacteria
Definition
Bacteria that "fix" atmospheric nitrogen into a more useful form such as ammonium
Term
Gram-positive bacteria
Definition
Usually not as pathogenic as gram-negative bacteria, gram-positive basically just means that the cell wall retains the purple dye of the gram stain.
Term
Pathogenesis
Definition
Creation of disease. Pathogens are either EXOTOXINS, whose cell membranes are toxic, or ENDOTOXINS, who excrete toxic waste
Term
Mutualism
Definition
Idea that most bacteria are harmless or useful to us. The "natural flora" of our bodies
Term
Why was a new taxon created for archaeabacteria?
Definition
Because of the significant differences in cell membrane/wall structure and genome pattern.
Term
The 6 phylogenetic groups of Kingdom Eubacteria
Definition
Spriochaetes, Chlamydias, Gram-positive, Cyanobacteria, Proteobacteria
Term
Capsid
Definition
Protein shell in a virus that covers the genetic material and "packages" the genetic material for transport to other cells
Term
Lytic cycle. Describe it.
Definition
-So named because it ends in lysis (rupture) of cell wall
-Virus latches onto outside receptors of cell and injects DNA into cell
-Virus hijacks cell's DNA reproduction mechanism and produces capsids by inscription
-Then DNA is assembled into capsids and a lytic enzyme is produced, rupturing the cell membrane.
Term
The 3 kinds of protists
Definition
Fungus-like, Animal-like, Plant-like
Term
Fungus-like protists
Definition
Feed on dead organic material by endocytosis. Examples: slime mould, water slime mould
Term
Animal-like protists
Definition
eat or ingest material from local environment. Examples are amoeba, zooflagella, and ciliates
Term
Plant-like protists
Definition
Contain chlorophyll and can conduct photosynthetic reactions.
Term
Trucker (r) brand caffeine pills
Definition
The solution to an A+ on your exam
Term
Fungi distinguishing characteristics
Definition
Fungi are heterotrophic because they feed on dead/decaying matter. Eukaryotes. Fungi are saprobes because they feed by releasing enzymes onto their food and absorbing the processed nutrients. They are made up of hyphae, little strands which group to form a mycelium. These hyphae have cell walls but they are reinforced with chitin.
Term
Myccorhizae
Definition
Fungi that form associations with other plants so that both benefit from the mineral excretion of the other, like truffle mushrooms which live on the roots of trees. There are 2 kinds, those that wrap around the outside of the root, and those that remain inside the root.
Term
Zygomycota
Definition
Most primitive fungi, produce sexually by conjugation to form a zygosphere. Example is a bread mold. Zygosphere is like a dormant fetus that waits for ideal growing conditions to burst forth.
Term
Basidiomycota
Definition
Most advanced fungi, include mushrooms and characterised by a water-absorbing cap/knob that can grow large. Inside the cap, there are gills that radiate outwards which each contain thousands of BASIDIA, spores that are carried by the winds to germinate on new ground by cell division.
Term
Ascomycota
Definition
Sac fungi, which form (yep!) spore-bearing sacs. Unicellular yeasts, mildews, ergots, morels, cup fungi. Either produce sexually or asexually, forming ascospores or conidia, respectively.
Term
Lichens
Definition
2 organisms living together symbiotically: fungae and algae, where the algae can perform photosynthesis and the fungus provides nutrients and moisture. Can survive without soil or in other harsh conditions.
Term
Foliose lichens
Definition
Leafy appearence
Term
Squamlose
Definition
Scale-like lichens on pebbles
Term
Endocytosis (amoeba)
Definition
When an amoeba engulfs another smaller organism with a pseudopod, a temporary projection of cytoplasm. The organic material is then digested.
Term
Bryophyte
Definition
Non-vascular plant that have no specialized tissue or stems, etc. Usually grow in dense mats and only grow a few inches tall.
Term
Gymnosperms
Definition
Plants which have naked seeds, like conifers, ginkos, and cycads. Defined by specialized reproductive cones where fertilization takes place.
Term
Angiosperms
Definition
"Covered seed", the most successful group of plants on Earth. Seeds are fertilized in the flower and the seeds are able to grow in a much more diverse set of environments because it is covered and protected.
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