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AP Bio
AP Biology Unit 1 Flashcards
179
Biology
Undergraduate 1
09/16/2007

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Term
Mixotrophs
Definition
Combine photosynthesis and heterotrophic nutrition (Protists do this)
Term
Protists
Definition
comprising those eukaryotes that cannot be classified in any of the other kingdoms as fungi, animals, or plants. They are usually treated as the kingdom Protista or Protoctista. Protoctists (or protists) are a paraphyletic grade, rather than a natural, (monophyletic) group, and so do not have much in common besides a relatively simple organization -- either they are unicellular, or they are multicellular without highly specialized tissues. Essentially, the Kingdom Protista is comprised of organisms that cannot be classified into any other kingdom.
Term
Syngamy
Definition
The union of two gametes.
Term
Cysts
Definition
Protists form these resistant cells so that it can hibernate and survive harsh conditions.
Term
Serial Endosymbiosis
Definition
Theory that proposed that mitochondria and chloroplasts were formerly small prokaryotes.
Term
Diplomonads
Definition
Protists that lack mitochondiria, they have multiple flagella, a simple cytoskeleton and no plastids.
Term
9 + 2
Definition
Flagella in protists, 9 outer flagella, 2 inner
Term
Thallus
Definition
Seaweed body that is plant like, but lacks true roots, stems, and leaves
Term
Alternation of Generations
Definition
Alternations of multicellular haploid forms and multicellular diploid forms.
Term
Sporophyte
Definition
An individual diploid
Term
Gametophyte
Definition
A haploid individual named for it's production of gametes
Term
Byrophytes
Definition
Land plants that are non-vascular: they have tissues and enclosed reproductive systems, but they lack vascular tissue that circulates liquids. They neither flower nor produce seeds, reproducing via spores. Mostly Mosses.
Term
Pteridophyes
Definition
The term "pteridophyte" has traditionally been used to describe all seedless vascular plants, making it synonymous with "ferns and fern allies".
Term
Gymnosperms
Definition
The gymnosperms (Gymnospermae) are a group of spermatophyte seed-bearing plants with ovules on the edge or blade of an open sporophyll, the sporophylls usually arranged in cone-like structures. The other major group of seed-bearing plants, the angiosperms, have ovules enclosed in a carpel, a sporophyll with fused margins. Pine cones.
Term
Angiosperms
Definition
The flowering plants or angiosperms are the most widespread group of land plants. The flowering plants and the gymnosperms comprise the two extant groups of seed plants. The flowering plants are distinguished from other seed plants by a series of apomorphies, or derived characteristics.
Term
Charophyceans
Definition
An algae that is very close to land plants. Shares rosette cellulose synthesizing complex, enzymes contained within the organelle called peroxisomes, flagellated sperm, and phragmoplasts, (an alignment of cytoskeleton and golgi-derived vesicles) with land plants. Different in that it doesn't xperience alternation of generations.
Term
Placental transfer Cells
Definition
Plants have these multicellular dependent embryos, and the placental transfer cells pass nutrients from parent cells to embryos.
Term
Spore
Definition
A reproductive cell that can develop into a new organism without fusing with another cell. Walled spores are produced in sporangia. The polymer known as sporopollenin, made out of the most durable organic material known, make plants very tough.
Term
Sporangia
Definition
A multicellular organ in a plant that produces the spore
Term
Gametangia
Definition
Produce the gametes within the cell. Female are called archegonia (makes one egg), male, antheridia, (makes sperm).
Term
Archegonia
Definition
Female reproductive organ in a plant, found in the gametangia. Makes one egg.
Term
Antheridia
Definition
Male reproductive in the cell, found in the gametangia. Makes sperm.
Term
Cuticle
Definition
A layer in plants consisting of polymers called polyester and waxes. These present water loss, Land plants evolved from water plants to include these.
Term
Stomata
Definition
Pores found in the epidermis of leaves and other photosynthetic organs. Allows the passage of CO2 and H2O.
Term
Xylem and Phloem.
Definition
Two types of materials that conduct materials in a plants vascular system. Xylem carries water, Phloem carries food.
Term
Secondary Compounds
Definition
Land plants produce these unique molecules (Eg, alkaloids, terpenes, tannus) that humans have many medicinal uses for.
Term
Kingdom Streptophyta
Definition
Proposed name for a new version of the plant kingdom that includes the charophyceans as well as plants.
Term
Lignen
Definition
Chemical found in plants that hardens the cell walls.
Term
Gametophore
Definition
Mature, gamete producing structure of bryophytes.
Term
Rhizoids
Definition
Delicate and colorless, they anchor bryophytes to the ground.
Term
Seeds
Definition
Consist of a sporophyte embryo packaged along with a food supply
Term
Prokaryotes
Definition
• No nuclei
• No membrane-bound organelles
• No cytoskeleton

• In contrast, eukaryotes have all of these
Term
Mesozoic
Definition
Triassic
Jurassic
Cretaceous
Term
Fungi Saprobes
Definition
Fungi Saprobes
Term
Macroevolution
Definition
Changes usually above the level of the species

Ex: appearance of feathers during the evolution of birds from one group of dinosaurs

*Speciation may fall within either category
Term
Source of Prokaryotic divergence
Definition
-mutation
-resource
-other environments (eg temperature)
Term
Why Fungi are important
Definition
Fungi are earth’s main means of garbage disposal

oDecomposers
*Break down cellulose and lignin from plants that bacteria can’t
*Break down keratin

oContribute to the carbon cycle
Term
Archaea
Definition
• Prokaryotic cells
• But: rRNA sequences more similar to eukarya
– Signature sequences
– But actual relationships confused by lateral
gene transfer
• Lateral gene transfer:
– Plasmids
– Viruses
– Uptake of DNA by transformation
Oldest cells
Term
Prokaryotic Success and Reproduction
Definition
Reproduction
– Asexual: binary fission
– Sexual recombination
• Plasmids

Rapid generation time
• E. coli can clone once every 20 minutes
• 1-3 hours is common

Production of endospores
• Dormant stages
• (Bacillus anthracis)
Term
Homology
Definition
Any features present in multiple species because they descended from a common ancestor.

A similarity between two or more structures that is due to inheritance from a common ancestor.

(Bones are homologous;wings are not)
Term
Photoautrophs
Definition
– Obligate anaerobes: do not use oxygen in metabolism,and will be poisoned by presence of oxygen

– Aerotolerant anaerobes: can’t use oxygen but will notbe poisoned either

– Facultative anaerobes: can metabolize with or without the presence of oxygen. May be able to handle presence of oxygen or may change metabolic process

– Obligate aerobes: need oxygen for metabolism
Term
Relationships
Definition
Monophyletic - descended froma single ancestor

Paraphyletic - a taxon group that includes some, but not all of the descendents of a common ancestor

polyphyletic - a group containing taxa that do not share a most recent common ancestor
Term
Ciliates
Definition
• Hairlike cilia
• Heterotroph
• Usually unicellular
• Two types of nuclei!
Term
RNA stands for
Definition
Ribonucleic Acid
Term
What transports manufactured proteins out of the cell
Definition
Golgi Bodies
Term
Chloroplast contains what molecule
Definition
Chlorophyll
Term
What is the passage of water through a semi-permeable membrane from a region of greater to less concentration
Definition
Osmosis
Term
What are the 5 types of pollution
Definition
Water, Air, Biochemical/Filth in Food, Noise & Light
Term
What are bacteria and archaea
Definition
prokaryotes (they have little internal complexity and no nucleus)
Term
How did the planets early atmosphere change to include oxygen
Definition
tiny cells using photsynthesis released oxygen as a byproduct
Term
The Endoplasmic Reticulum serves two functions. What are they
Definition
1. It increases the surface area of the cell
2. It functions as the final attachment site for the ribosome, sometimes
Term
What are the 6 steps to the Scientific Method?
Definition
1.Recognition of a problem
2.Observation
3.Formation of a hypothesis
4.Experimentation
5.Accept or reject hypothesis
6.Publish the data
Term
Coacervates are early examples of
Definition
Pre-Living cells, made up of amino acids, proteins and hydrocarbon chains
Term
Jean Baptiste Camarck termed which two failed concepts
Definition
1. Use vs. Disuse
2. Inheritance of acquired characteristics
Term
Louis Pasteur
Definition
Disproved spontaneous generations using beef broth
Term
A species all deriving from a common ancestor have over time successfully adapted to their environment via natural selection
Definition
Is an example of adaptive radiation
Term
Metastasis is
Definition
the beginning of the formation of cancer cells
Term
Ribosome are manufactured in
Definition
The Nucleolus
Term
What is Hypotonic
Definition
Comparable term meaning that solution A is of less concentration than solution B
Term
One of the seven properties of life is the ability to respond to stimuli which is also defined as
Definition
Irritability
Term
Cell differentiation is
Definition
The occurrence during meiosis when cell bodies began to specialize there function
Term
What is the difference between solution and mixture
Definition
A 5 gallon bucket filled with water and the following substances thrown in are examples of...

Solution > Sugar with water because it can disolve
Mixture > Dirt with water because it clumps together and does not disolve
Term
Who where the three main people that influenced Charles R Darwin?
Definition
1. Alfred Wallace - Gave Darwin the outline of Origin
2. Thomas Malthus - Termed survival of the fittest
3. Charles Lyell - Made Darwin believe the earth was millions of years old
Term
The ability to acquire and utilize NRG is also defined as
Definition
Metabolism
Term
The make up of the early atmosphere needed NRG to get life started. What three sources could that come from
Definition
1. Sunlight
2. Heat
3. Electrical discharge
Term
Macromolecules are
Definition
Macromolecules are
Term
What is the Scala Naturae
Definition
aka The Scale of Nature, it was the first classification of animals. Humans were at the top bugs and snakes at the bottom
Term
What were the four main points of Origin of Species
Definition
1. Struggle for existence
2. More offspring were produced than could survive
3. Individual variations present
4. Some variations are beneficial to get passed on
Term
Heterotrophs stands for
Definition
Other Feeding = Animals Don't get their nutrients from the sun.
Term
What is the lipid bilayer
Definition
The structural basis of every cell membrane
Term
The cell wall provides support and strength to the cell and also contains _______
Definition
Cellulose
Term
what were the 2 ideas of James Hutton (Uniforitarianism)?
Definition
1. The earth is old (older than the biblical terms suggest)
2. Change is the normal chain of events
Term
Rudolf Virchow's analysis eventually led to what
Definition
Cell theory
Term
What is Plasmolysis
Definition
Cells shriveling ie. not watering a plant and it wilting
Term
What was Carl Von Linne known for
Definition
Inventing Binomial Nomenclature - 2 name categorization system using Latin words
Term
Lysosome Bodies aka suicide sacs serve two purposes. What are they
Definition
1. They contain digestive enzymes
2. Make up an important part of the cell defense mechanism
Term
John Hunter mastered which four medical subjects
Definition
1. Blood Coagulation
2. Lymphatic System
3. Chick Embryogy
4. Venereal Disease
Term
What was Buffon's theory
Definition
Degeneration aka Reverse Evolution.
Term
Phylogenetic is a type of classification system that reflects what
Definition
presumed evolutionary relationships
Term
What are Aristotle's 4 main books
Definition
1. The natural history of animals
2. On the parts of animals
3. On the generation of animals
4. On the psyche
Term
What are the 2 types of Catastrophism
Definition
1. Deluvinism - Floods
2. Vulcanism - Volcanos
Term
Three possible origins of life
Definition
1. created supernaturally
2. external source "astroplankton"
3. Evolved on an orderly manner from non-living matter
Term
Georges Cuvier believed in what?
Definition
Catastrophism - major catatsrophes cause extinctions
Term
Isolation is a basic concept of evolution because...
Definition
Smaller populations require less time to change than bigger pops.
Term
An all inclusive word for the growth and development of life is...
Definition
Ontogeny
Term
"Selection" in terms of evolution has two types
Definition
1. Artificial Selection- Man messing with the species
2. Natural Selection- Mother Nature's guiding hand
Term
The cell storage area for food and waste material is called
Definition
Vacuole
Term
Define Evolution
Definition
Small, discreet changes in genetic structure over time
Term
What are the four basic concepts of evolution
Definition
1. Mutation
2. Gene Recombination
3. Isolation
4. Selection
Term
What is Isotonic
Definition
Comparable term meaning that solution A is of equal concentration to solution B
Term
What is Hypertonic
Definition
A comparable term meaning that solution A is of greater concentration than solution B
Term
DNA contains what type of information
Definition
Genetic information
Term
What is in the area between plasma membrane and center region of a cell
Definition
Cytoplasm
Term
Who is the father of Paleontology?
Definition
Gorges Cuvier also an expert in comparitive anatomy
Term
The three generalizations of the cell theory are
Definition
1. All organisms composed of one or more cells
2. The cell is the most basic unit of life
3. All cells originated from pre-existing cells
Term
What is the problem with Antibiotics?
Definition
It allows us to live longer which in the scheme of this is bad and helps create "super virus'"
Term
A homologous structure is
Definition
A similar body part in different lineages with shared ancestors
Term
The seven properties of life are
Definition
1. Organization
2. Homeostasis
3. Ability to acquire & use NRG
4. Respond to stimuli
5. Reproduction
6. Growth & Development
7. Adapt to a changing enviorment
Term
What is the purpose of a plasma membrane
Definition
It determines what goes in and out of the cell
Term
What are the levels of organization
Definition
Atom > Molecule > Cells > Tissues > Organs > Organisms > Population > Community > Ecosystem > Biosphere
Term
How does the Mitochondria power the cell
Definition
By converting oxygen to NRG
Term
What is Stratification
Definition
Layers of sedimentary rock ie. the horizontal lines in the Grand Canyon
Term
What is Homeostasis
Definition
The tendency to remain the same
Term
RNAs purpose is
Definition
To assist in protein synthesis and translate DNA.
Term
RNA is for protein synthesis and is found where in the cell
Definition
Ribosome
Term
What is the purpose of organelles
Definition
They organize the events in a cell ie. where the cell moves and stores substances in the cytoplasm and other specific destinations
Term
DNA stands for
Definition
Deoxyribonucleic Acid
Term
What were five substances made up the majority of the early earth atmosphere
Definition
water vapor, hydrogen, nitrogen, methane, ammonia
Term
Autotroph stands for
Definition
Self Feeding = plants
Term
Define diffusion
Definition
the passage of particles from a region of greater to less concentration
Term
What is the powerhouse for the cell
Definition
Mitochondria
Term
noto-
Definition
(G) back;
notochord: a cartilaginous structure that runs down the back of chordates during some developments
Term
myc-
Definition
G) fungi;
mycology: the study of fungi
Term
hem-, hemat-
Definition
(G) blood;
hemoglobin: a protein of the blood
Term
meso-
Definition
(G) middle;
mesoderm: the middle layer of the 3 germ layers
Term
hyper-
Definition
(G) above, beyond, excess of;
hypertonic: having an excess of ions
Term
-osis
Definition
(G) being affected with;
atherosclerosis: being affected with fatty deposits in the arteries
Term
mono-
Definition
(G) one, single;
monosaccharide: a single sugar molecule
Term
phago-
Definition
(G) to eat;
phagocytes: white blood cells which eat bacteria
Term
zoo-
Definition
(G) animal;
zoology: the study of animals
Term
phyto-
Definition
(G) plant;
phytochromes: plant pigments
Term
tugere-
Definition
(L) to swell;
turgor: the pressure exerted on the plant cell wall which results from osmosis causing the cell to swell
Term
erythro-
Definition
(G) red;
erythrocyte: a red blood cell
Term
derm-, dermat-
Definition
(G) skin;
epidermis: the uppermost layer of skin
Term
path-
Definition
(G) disease;
pathogenic: disease causing phagocytes
Term
soma-
Definition
(G) body;
somatic cells: body cells
Term
pro-
Definition
(G) before;
prokaryote: organisms lacking a nucleus (i.e. before a nucleus)
Term
chondr-
Definition
(G) cartilage;
chondricythyes: fish with cartilage composing their skeleton
Term
cardi-
Definition
(G) heart;
cardiac muscle: heart muscle
Term
tox-
Definition
(G) poison;
toxic: acting so as to make one ill or cause death
Term
chromo-
Definition
(G) color;
chromoplasts: plastids which contain colors seen in autumn leaves
Term
auto-
Definition
(G) self;
autotroph: self-feeder
Term
extra-
Definition
(G) outside;
extraembryonic membranes: membranes found outside the embryo
Term
rene-
Definition
(L) kidney;
renal artery, the artery that supplies blood to the kidney
Term
rene-
Definition
(L) kidney;
renal artery, the artery that supplies blood to the kidney
Term
epi-
Definition
(G) on, over, or above;
epidermis: the layer of skin on or above the dermis
Term
leuko-
Definition
(G) white;
leukocyte: a white blood cell
Term
morpho-
Definition
(G) form, shape;
morphogenesis: the changes of form of an organism
Term
osteo-
Definition
(G) bone;
osteoporosis: a disorder that involves loss of calcium from bones
Term
rhiz-
Definition
(G) root;
rizoids: rootlike structures
Term
gymno-
Definition
(G) naked;
gymnosperms: the naked seeded plants
Term
nephr-
Definition
(G) kidney;
nephron: the functional unit of the kidney
Term
-ase
Definition
(G) enzyme;
lipase: an enzyme that breaks down fats or lipids
Term
cyto-
Definition
(G) cell;
cytology: the study of the cell
Term
-cyte
Definition
(G) cell;
spermatocyte: the cells which give rise to spermatids by meiosis
Term
muta-
Definition
(L) change;
mutagen: an agent that will cause a genetic change
Term
vita-
Definition
(L) life;
vitamin: substances required in small amounts for normal growth and function
Term
haplo-
Definition
(G) single;
haploid: having one (a single) set of chromosomes
Term
taxis-
Definition
(G) arrange, put in order;
taxonomy: the classification of organisms
Term
meta-
Definition
(L) middle, between;
metaphase: middle phase in mitosis
Term
stoma-
Definition
(G) mouth;
stomata: openings (mouths) in leaves through which gases pass
Term
macro-
Definition
(G) large or great;
macromolecules: molecules that are very large
Term
hepat-
Definition
(G) liver;
hepatic portal vein: a vein that connects the intestine and liver
Term
antho-
Definition
(G) flower;
anthophyta: the division of plants with flowers
Term
-lysis
Definition
(G) loosening, dissolution;
hydrolysis: the dissolution of a single molecule into 2 molecules using water
Term
sym-, syn-
Definition
(G) together, with;
sympatric speciation: speciation without isolation geographically
Term
trop-
Definition
(G) turning;
gravitropism: a plant response to gravity where the plant shoot turns away from the source of gravity and the root turns toward it
Term
lipo-
Definition
(G) fat;
lipids: fat molecules
Term
trans-
Definition
(L) across;
transposon: a DNA segment that can move from one location in a chromosome to another
Term
vas-
Definition
(L) vessel;
vascular tissue: tissue-containing vessels that conduct fluid
Term
glyco-
Definition
(G) sugar;
glycolysis: the breakdown of the sugar glucose
Term
blast-
Definition
(G) embryonic or growing thing in early stages;
blastula: an early stage of an embryo
Term
Classification
Definition
Kingdom Phylum Class Order Family Genus Species
Term
5 Major Extinctions
Definition
Ordovician Devonian Permian Triassic Cretaceous
Term
Microevolution
Definition
Changes within species or population mechanism; natural selection, genetic drift, mutation, gene flow Ex: Evolution of break size in Darwin's Finches
Term
Traits shared by all three domains
Definition
1) conduct glycolysis 2) Replicate DNA semiconservativly 3) DNA encodes polypetides 4) produce those polypetides by transcription and translation using the same genetic code 5) have plasma membranes and ribosomes
Term
cell walls
Definition
• Bacteria: peptidoglycan • Archaea: varied, but protein-based – With distinctive lipids in cell membranes • Eukarya: – Fungi: Chitin – Plants & Algae: Cellulose and other polysaccharides – (Animals and most protists don’t have cell walls)
Term
Prokaryotic Diversity
Definition
• Coccus (Cocci) • Bacillus (Bacilli) • Spiral • Almost all are unicellular • Some associate in filaments (but still unicellular) But most diversity is related to metabolism, not morphology
Term
Hydrothermal vents
Definition
• Live in deep sea (no sunlight) • Extremely hot! Water close to boiling • Bacteria oxidize hydrogen sulfide (H2S) released from vents • Chemoautotrophs • Bacteria are base of food web – Crabs, clams, shrimp, fish
Term
photoautotrophs: cyanobacteria
Definition
• Perform photosynthesis and give off O2 • Sunlight as energy and CO2 as carbon source • Use Chlorophyll A, like plants • Other photosynthetic bacteria use bacteriochlorophyll • Appeared about 3.5 bya, contributed to enriched O2 atmosphere
Term
Eukaryotic Cell
Definition
• Organelles with membranes – specialized factories • Nucleus • Cytoskeleton – Support for cell – Changes in shape – Mitosis (distribution of daughter chromosomes) – Move materials within cell – Sets the stage for structures used for movement
Term
Eukaryotic Cell - Evolution
Definition
1.protective cell wall lost 2.increase surface area – infolding 3.internal membranes, vacuoles 4.cytoskeleton 5.nucleus: infolding vesicle 6.Flagellum: from cytoskeleton 7.Mitochrondria: endosymbiosis with proteobacterium 8.Chloroplast: endosymbiosis with cyanobacteria
Term
Apicomplexans
Definition
•All parasitic – all need other organisms to survive •Apical complex – helps to invade host’s tissues •Elaborate life cycles  might need various hosts to complete cycyles •Plasmodium – causes malaria by invading a red blood cells i.uses mosquito and humans as hosts •Toxoplasma – toxoplasmosis i.Hosts: cats and animals eaten by cats (eg rats) ii.Microbe change the behavior of the host (kinda like rabies)
Term
Kinetoplastids: Trypanosoma
Definition
Definition 44
•Protozoans •Human pathogens i.Sleeping sickness, Chagas disease, Leishmaniasis •No vaccinations, no cures if caught too late •Often happens in developing countries  no incentive for drug companies
Term
Fungi
Definition
• Multicellular body: mycelium • Composed of: tubular filaments = hyphae • Hypha: divided into cell-like units by septa • Hyphae may be specialized • Mycelium may be reorganized into reproductive fruiting body (mushroom)
Term
FU% major Groups
Definition
oChytrids :Paraphyletic, aquatic oZygomycetes: paraphyltic terrestrial oAscomycetes: terrestrial oBasidiomycetes: terrestrial oGlomeromycetes: terrestrial ; always multicellular
Term
LIfe Cycle of Land Plants : Alternation of generations
Definition
Gametophytes (N) -> fertilization -> Sporophyte (2N)-> Reduction Division (Meiosis) -> Gametophytes
Term
haploid gametophyte
Definition
-female:Archegonia (ovaries) -male: antheridia (testes) -> gametes produced via mitosis
Term
Diploid Sporophyte
Definition
-certain cells undergo meiosis -> produce lots of haploid spores - spores are spread by wind-> why they land in a good spot they grow into haploid gametophytes
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