Biology EOC Vocabulary

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mmmathew27  on May 2, 2012

Subjects:

biology

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Megan's and Janelle's Biology EOC review. yay this took me forever.

Classes:

Eastside Class of 2015

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Biology EOC Vocabulary

Cytoskeleton
cellular structure with analogous function to the human skeleton; maintains cell shape
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Definitions

Cytoskeleton cellular structure with analogous function to the human skeleton; maintains cell shape
Enzyme protein that changes the rate of a chemical reaction and is involved in nearly all metabolic processes
Virus disease-causing, non-living particle composed of an inner core of nucleic acids surrounded by a capsid and can reproduce only when they are inside a host cell
RNA carry the code from DNA to the ribosomes
Lysosome organelle within the cell functioning like a miniature stomach
Mitochondria "power-house" of the cell
anaphase I stage of meiosis beginning with homologous chromosomes, each with its two chromatids, separating and moving to opposite ends of the cell
crossing over non-sister chromatids from homologous chromosomes break and exchange genetic material
nondisjunction failure of chromosomes to separate properly during meiosis
meiosis type of cell division where one body cell produces four gametes, each with half the number of chromosomes
sex chromosomes 23rd pair of chromosomes
codominance type of inheritance where offspring that show both tan and brown fur (purebred father with brown fur and a purebred mother with tan fur)
law of segregation when gametes are produced, each gamete receives one of two possible alleles
uracil base that pairs with adenine in RNA
TT , Tt genotype for a homozygous tall pea plant; genotype for a heterozygous tall pea plant, using the letter "T"
Transcription results in an RNA copy of a DNA strand
25% chance of a child inheriting a recessive disorder caused by a gene, if both parents carry a single recessive gene
Hypothesis explanation for a question or a problem that can be formally tested
genetic drift alteration of allelic frequencies by change events that greatly effects small populations
convergent evolution dolphins and fish are unrelated vertebrates with similar body shapes that are adapted for moving efficiently through water; what is the evolutionary process shown by this example?
cellular respiration process that uses oxygen to break down glucose and release energy
vaccine weakened, dead, or incomplete portions of pathogens or antigens used to prevent disease outbreak
3:1 phenotype ratio of offspring from two heterozygous parents that have a single dominant trait
Transgenic plants or animals that contain functional recombinant DNA from an organism of a different genus
Inference drawing a conclusion based on circumstantial evidence rather than as a result of observation
Biology organized study of living things and their interactions with their natural and physical environments
Adaptation any structure, behavior, or internal process that enables an organism to respond to environmental factors and live to produce offspring
Species group of organisms that can interbreed and produce fertile offspring in nature
Cell basic unit of organization of living things
Symbiosis any close and permanent association among organisms of different species
food chain simple model used to show how matter and energy move through an ecosystem
autotroph organisms that use energy from the sun or energy stored in chemical compounds to manufacture their own nutrients
omnivore organism that consumes both plant and animal products
biodiversity variety of life
extinction when the last member of a species dies
commensalism interrelationship where one species benefits, while another species is neither helped nor hurt
abiotic non-living factors: latitude, temperature, precipitation, sunlight
biotic living factors: organisms, predators, diseases
diffusion net movement of particles from an area of higher concentration to an area of lower concentration
cell theory states cells are a basic unit of organization, all organisms are made up of one or more cells, and all cells come from preexisting cells
eukaryotes cells that have a nucleus and other organelles enclosed by a plasma membrane
selective permeability plasma membrane controls what enters and leaves the cell
prokaryote cells without a nucleus or other organelles, but with nucleic acids
active transport moves materials against the concentration gradient and requires energy to overcome flow of materials opposite the concentration gradient
centrioles small, dark cylindrical structures that are made of microtubules and located just outside the nucleus, and play an active role in cell division
ATP molecule that stores energy for easy use, formed when a phosphate group is added to ADP
Photosynthesis process by which cells use light energy to make simple sugars
Aerobic processes that require oxygen
Anaerobic processes that do not require oxygen
protein synthesis process by which amino acids are linearly arranged into proteins through the involvement of rRNA, tRNA, mRNA and enzymes
mitosis cellular division resulting in two daughter cells, exactly identical to parent cells, with a complete set of chromosomes
gametes male and female sex cells, formed during meiosis
heredity the passing on of characteristics from parents to offspring
diploid cell containing two of each kind of chromosome, 2n number of chromosomes
nucleic acid organic molecule composed of nucleotides (sugar, phosphate, and nitrogen base)
genetic engineering insertion of normal genes into human cells to correct genetic disorders
spontaneous generation idea that nonliving material can produce life
natural selection mechanism for change in a population (can be directional, stabilizing, disruptive), "survival of the fittest"
binomial nomenclature modern classification system designed by Linnaeus using two word naming for organisms
Louis Pasteur disproved the idea of spontaneous generation by conducting experiments with curve-necked flasks
Chloroplasts organelle used in plant cells to carry out the process of photosynthesis
Fossil physical evidence of an organism that lived long ago that scientists use to study the past
Eubacteria / Archaebacteria kingdoms that include prokaryotes
Protista kingdom that includes eukaryotes that lack complex organ systems and live in moist environments (unicellular)
Fungi kingdom that includes heterotrophic eukaryotes that absorb nutrients
Plantae kingdom that includes multicellular autotrophs (with cell walls) with complex organ systems
Animalia kingdom that includes multicellular heterotrophs (without cell walls)
relative dating dating method that relies on the position of rock layers
binary fission method bacteria use to reproduce asexually
chitin complex carbohydrate found in the cell wall of most fungi
carbohydrate organic compound used by cells to store and release energy; composed of carbon, hydrogen, and oxygen
flagella long filament used to propel autotrophic algae through the water
chlorophyll major pigment of photosynthetic autotrophs (green algae and plants)
nonvascular plant plants in which the transport of water and other substances is mainly by osmosis and diffusion from cell to cell
vascular tissue a group of tubelike, elongated cells through which water and other materials are transported throughout the plant (xylem and phloem)
dichotomous key a key for the identification of organisms based on a series of choices between alternative characters
alternation of generations life cycle found in algae, fungi, and all plants where an organism alternates between a haploid gametophyte generation and a diploid sporophyte generation
gastrulation inward movement of cells to form two cell layers, the endoderm and ectoderm
open circulatory system system where blood moves through vessels into open spaces around the body organs
radial symmetry type of symmetry exhibited by a sand dollar
dorsal hollow nerve cord nerve cord found in all chordates that form the spinal cord and brain
Mollusca phylum that contains organisms with a mantle, bilateral symmetry, a digestive tract with two openings, and a muscular foot (some organisms will contain a hard shell - univalve or bivalve)
Sessile term used to describe non-motile asymmetrical organisms
swim bladder thin-walled, internal sac found just below the backbone in bony fishes (used to control water depth)
amphibians organisms with three-chambered hearts, eggs without shells laid in water, smooth moist skin, live larval stage in water and adult stage on land and water
birds (aves) organisms with adaptations for flight, feathers, a keel-shaped sternum four-chambered heart, endothermic, reinforced hollow bones, a beak and air sacs
reptiles organisms that are ectotherms that have dry, scaly skin, internal fertilization, and amniotic eggs
amniotic egg provides nourishment to the embryo and contains membranes that protect it while it develops in a terrestrial environment
uterus hollow, muscular organ in which offspring of placental mammals develop
imprinting learned behavior in which an animal, at a specific critical time of its life, forms a social attachment to another object
digestive system system that functions to digest food, absorbs nutrients, and eliminate undigested food and other wastes
negative feedback internal mechanism in which a substance is fed back to inhibit the original signal and reduce production of a substance (example: hormones in the endocrine system)
homeostasis regulation of internal environment to maintain conditions suitable for survival
cell specialization each cell does a specific function for a larger organ or tissue
DNA replication process in which chromosomal DNA is copied before mitosis or meiosis takes place
Testosterone hormone in males that stimulates production of sperm, secondary sex characteristics, production of FSH and LH
acquired immunity defending against a specific pathogen by gradually building up a resistance to it
biomes group of ecosystems with the same climax communities; terrestrial or aquatic
carrying capacity number of organisms of one species that an environment can support indefinitely
chromosomes cell structures that carry the genetic material that is copied and passed from generation to generation of cells
cirdadian rhythm innate behavior based on the 24 hour cycle of the day; light-regulated; determines sleep and awake
codon set of three nitrogenous bases that represent an amino acid
compound light microscope instrument that uses light and a series of lenses to magnify objects
vertebrate animal with an endoskeleton and a backbone
tundra biome surrounding the north and south poles; treeless with long summer days and short periods of winter sunlight; permafrost
succession orderly, natural changes and species replacements that take place in communities of an ecosystem over time
decomposers organisms such as fungi and bacteria that break down and absorb nutrients from dead organisms
exponential growth growth pattern where a population grows faster as it increases in size; graph of growing population resembles a J-shaped curve
geographic isolation occurs whenever a physical barrier divides a population, resulting in individuals no longer able to mate; causes new species
sexual reproduction pattern of reproduction that involves the production and fusion of haploid sex cells
protein large, complex polymer composed of carbon, hydrogen, oxygen, nitrogen that provides structure for tissues and organs and carries out cell metabolism
population group of organisms all the same species, which interbreed and live in the same place at the same time
karyotype chart of metaphase chromosome pairs arranged according to length and location of the centromere; used to determine numbers
limiting factor any biotic or abiotic factor that restricts the existence, numbers, reproduction, or distribution of organisms
asexual reproduction type of reproduction where one parent produces one or more identical offspring without the fusion of gametes
polygenic inheritance inheritance pattern of a trait controlled by two or more genes; genes may be on the same or different chromosomes
sex-linked traits traits controlled by genes located on sex chromosomes
pedigree graphic representation of genetic inheritance used by geneticist to map genetic traits between several generations
gymnosperms a plant, such as a cycad or conifer, whose seeds are not enclosed within an ovary, but arranged in cones
respiration using lungs, gills, skin to provide exchange between oxygen and carbon dioxide
coevolution the evolution of two or more interdependent species, each adapting to changes in the other
immune response a protective response of the body's immune system that recognizes an invading substance (an antigen - a virus or bacteria), and produces antibodies specific against that antigen
field ecology process of observations and study of plants and animals in their natural setting
community collection of several interacting populations that inhabit a common environment
trophic level organism that represents a feeding step in the movement of energy and materials through an ecosystem
sustainability capable of being continued with minimal long-term effects on the environment
stewardship responsibility for environmental quality shared by all those whose actions affect the environment
independent variable in an experiment, the condition that is tested because it affects the outcome of the experiment
ribosomes non-membrane-bound organelles in the nucleus and in the cell where proteins are assembled
fermentation the anaerobic conversion of sugar to carbon dioxide and alcohol by yeast
independent assortment formation of random combinations of chromosomes in meiosis and of gene on different pairs of homologous chromosomes by the passage at random of one of each diploid pair of homologous chromosomes into each gamete independently of each other pair
pathogen disease-producing agent such as bacteria, protozoans, fungi, viruses, and other parasites
parasites an organism that grows, feeds, and is sheltered on or in a different organism while contributing nothing to the survival of its host
antibiotic resistance disease-causing microbes that have become resistant to drug therapy
antibiotics substances produced by a microorganism that, in small amounts, will kill or inhibit growth and reproduction of other microorganisms
migration instinctive seasonal movements of animals from place to place
mimicry structural adaptation that enables one species to resemble another species; may provide protection from predators
producer photosynthetic green plant or chemosynthetic bacterium, constituting the first trophic level in a food chain; autotroph
food web model that shows all the possible feeding relationships at each trophic level in a community
water cycle cycle of evaporation and condensation that controls the distribution of the earth's water as it evaporates from bodies of water, condenses, precipitates, and returns to those bodies of water; hydrologic cycle
gene regulation cellular control of amount and timing of changes to the appearance of the product of a gene; control of gene expression
test cross mating of an individual of unknown genotypes with an individual of known genotype; can help determine the unknown genotype of the parent
annelids any segmented worm of the phylum Annelida, including earthworms, leeches, and various marine forms
nutrition process by which living organisms obtain appropriate foods and use it for growth, metabolism, and repair
carbon cycle combined processes, including photosynthesis, decomposition, and respiration, by which carbon as a component of various compounds cycles between its major reservoirs - the atmosphere, oceans, and living organisms
J-curve curve of exponential population growth over a short period of time
phospholipids bilayer a two-layered arrangement of phosphate and lipid molecules that form a cell membrane; the hydrophobic lipid ends facing inward and the hydrophilic phosphate ends facing outward
substrate the substance acted upon by an enzyme
guanine a purine base found in DNA and RNA; pairs with cytosine
nitrogenous base carbon ring structure found in DNA and RNA that contains one or more atoms of nitrogen; includes adenine, guanine, cytosine, thymine, and uracil
law of dominance Mendel's third law; states that one of the factors for a pair of inherited traits will be dominant and the other recessive, unless both factors are recessive
gene mutation mutation due to reorganization of a gene (point mutation)
genotype combination of genes in an organism
phenotype outward appearance of an organism, regardless of its genes
monohybrid cross genetic cross made to examine the distribution of one specific set of alleles in the resulting offspring
microevolution minor evolutionary change observed over a short period of time; gradual accumulation leading to new varieties of species
heterotrophic organisms that cannot make their own food and must feed on other organisms for energy and nutrients
growth increase in the amount of living material and formation of new structures in an organism; a characteristic of all living things
lymphatic system system by which lymph is returned from the cells to the blood and by which white blood cells are produced in response to inflammation or presence of antigens
antibodies proteins in the blood plasma produced in reaction to antigens that react with and disable antigens
hibernation state of reduced metabolism occurring in animals that sleep during parts of cold winter months; an animal's temperature drops, oxygen consumption decreases, and breathing rate declines
phototropism growth or movement of a sessile organism toward or away from a source of light
ecological pyramid graphical representation designed to show the biomass or productivity at each trophic level in a given ecosystem
gametophyte haploid form of an organism in alternation of generations that produces gametes
transpiration in plants, the loss of water through stomata
fertility rates ratio of live births in an area to the population of that area; expressed per 1000 population per year (birthrate)
demography study of population characteristics such as growth rate, age structure, and geographic distribution
El Nino phenomenon warming of the surface water of the eastern and central Pacific Ocean, occurring every 4 t0 12 years and causing unusual global weather patterns; sometimes called southern oscillation
Pollution introduction of harmful substances or products into the environment
Conservation methods and plans to protect biodiversity
renewable resources natural resources that are replenished by natural processes at a rate comparable to its rate of consumption by humans
experiment procedure that tests a hypothesis by collecting information under controlled conditions
protozoans unicellular, heterotrophic, animal-like protist
inflammation secondary immune response characteristic of swelling, heat, redness, and pain; includes an influx of white blood cells
xylem vascular plant tissue composed of tubular cells that transport water and dissolved minerals from the roots to the rest of the plant
phloem vascular plant tissue made up of tubular cells joined end to end; transports sugars to all parts of the plant
angiosperm plants having their seeds enclosed in an ovary; a flowering plant
pseudopodia in protozoans, cytoplasm-containing extensions of the plasma membrane; aid in locomotion and feeding
pollination from male reproductive organs to female reproductive organs of plants, usually within the same species
lytic cycle viral replication cycle in which a virus takes over a host cell's genetic material and uses the host cell's structures and energy to replicate until the host cell crusts, killing it
protocells large, ordered structure, enclosed by a membrane, that carries out some life activities, such as growth and division
chemosynthesis autotrophic process where organisms obtain energy from the breakdown of inorganic compounds containing sulfur and nitrogen
mitochondria eukaryotic membrane-bound organelles that transform energy stored in food molecules
multicellular organisms that are composed of two or more cells (eukaryotic)
clone genetically identical copy of an organism or gene
cell wall fairly rigid structure located outside the plasma membrane of plants, fungi, most bacteria, and some protists; provides support and protection
vacuole membrane-bound space in the cytoplasm of cells used for the temporary storage of materials
Charles Darwin scientist who formulated the theory of evolution by natural selection
Linnaeus botanist and found of the modern classification system for plants and animals and binomial nomenclature
organism an individual living thing
unicellular having or consisting of a single cell
organ a collection of tissues that carry out a specialized function of the body
organ system a group of organs that work together to perform a specific function
Ecosystem the interaction of a community of organisms with their physical environment
Biosphere part of Earth in which life exists including land, water, and air or atmosphere
Metabolism all of the chemical reactions that occur within an organism
Photosynthesis equation 6CO2 + 6H2O --> C6-H12-O6 + 6O2
Gene a segment of DNA on a chromosome that codes for a specific trait
Evolution the gradual change in a species over time, the sequence of events involved in the gradual development of a species or taxonomic group of organisms
Taxonomy the scientific study of how living things are classified, the science of describing, naming, and classifying organisms
Genus a group of closely related species, and the first part of the scientific name in binomial nomenclature
Family a taxonomic group containing one or more genera(genus), the taxonomic category above genus
Order a taxonomic group containing one or more families
Class a taxonomic group containing one or more orders
Phylum the major taxonomic group of animals and plants, , the taxonomic group below kingdom and above class
Kingdom a large taxonomic group, consisting of closely related phyla
Domain most inclusive taxonomic category; larger than a kingdom.(There are three)
(Scientific) Theory concept supported by a broad range of observations, experiments, and data
Law/Principle theory that is generally accepted by an overwhelming number of scientists
Hydrophobic type of molecule that does not interact with water because it is nonpolar
Hydrophilic type of molecule that interacts with water because it is polar
Glucose 6-carbon sugar that organisms degrade as a source of energy during cellular respiration
DNA nucleic acid polymer produced from covalent bonding of nucleotide monomers; genetic material of nearly all organisms
Guanine, Adenine, Cytosine, Thymine, Uracil name all 5 nucleotide bases(DNA and RNA bases and the one they share)
Plasma Membrane membrane surrounding the cytoplasm that consists of a phospholipid bilayer embedded with proteins; function to regulate the entrance and exit of molecules from cell
Cytoplasm a jellylike fluid inside the cell in which the organelles are suspended
Golgi apparatus stack of membranes in the cell that modifies, sorts, and packages proteins for export by the cell
Rough ER endoplasmic reticulum studded with ribosomes and synthesizes proteins
Nucleus control center of the cell
Central Vacuole a large, fluid-filled organelle/sac that stores not only water but also enzymes, metabolic wastes, and other materials in plant cells
Isotonic Solution a solution whose solute concentration is equal to the solute concentration inside a cell
Hypotonic Solution a solution in which the concentration of solutes is less than that of the cell. Cell swells and bursts in this type of solution
Hypertonic Solution a solution in which the concentration of solutes is greater than that of the cell. Cell shrinks and shrivels in this type of solution
Entropy a measure of the randomness or disorder of a system
Apoptosis programmed cell death
Haploid cell containing one of each kind of chromosome, 1n number of chromosomes
Fertilization process in sexual reproduction in which male and female reproductive cells join to form a new cell
Zygote diploid cell formed when a sperm fertilizes an egg
Gregor Mendel father of genetics. Experimented with pea plants and discovered law of dominance, ind. assortment, and segregation
Allele an alternative form of a gene
Transcription the organic process whereby the DNA sequence in a gene is copied into mRNA. DNA-->mRNA
Translation the process whereby genetic information coded in mRNA directs the formation of a specific protein. mRNA-->Protein
Central Dogma DNA-->mRNA-->Protein
Mutualism symbiotic relationship in which both species benefit from the relationship
Commensalism symbiotic relationship in which one member of the association benefits and the other is neither helped nor harmed
Parasitism symbiotic relationship between two organisms of different species where one benefits and the other is harmed
Shoot System The visible portion of a plant body, consisting of stems, leaves, and (in angiosperms) flowers.
Root System all of a plant's roots, which anchor it in the soil, absorb and transport minerals and water, and store food
Soil accumulation of inorganic rock material and organic matter that is capable supporting the growth of vegetation
Tropism a growth response of a plant toward or away from a directional stimulus
Cardiovascular System the body system that consists of the heart, blood vessels, and blood, and that carries needed substances to cells and carries waste products away from cells
Arteries blood vessels that carry blood away from the heart
Veins blood vessels that carry blood back to the heart
Blood pressure the pressure that is exerted by the blood against the walls of blood vessels
Hypertension high blood pressure
White blood cells disease fighting cells in blood, leukocytes,
Red blood cells blood cells containing hemoglobin that carry oxygen through the bloodstream
Immunity the body's capacity for identifying, destroying, and disposing of disease-causing agents
Immune System a system (including the thymus and bone marrow and lymphoid tissues) that protects the body from foreign substances and pathogenic organisms by producing the immune response
Phagocytes white blood cells that digest & destroy microorgasims and other unwanted substances - part of immunity system
Histamine send out signals to a variety of cells to cause bone marrow to increase production of white blood cells
Antigens Foreign material that invades the body and trigger the attack of antibodies in the immune response.
Humoral immunity type of specific defense immunity dependent on antibodies
Cell-mediated immunity type of specific defense immunity that is not dependent on antibodies
Active Immunity immunity provided by the body producing its own antibodies against a particular antigen; results from exposure to the antigen via infection or vaccine
Passive Immunity an immunity resulting from antibodies that are conveyed naturally through the placenta to a fetus or artificially by injection of a serum containing antibodies
Cerebrum largest part of the brain that controls the senses and thinking
Cerebellum the "little brain" attached to the rear of the brainstem; it helps coordinate voluntary movement and balance
Medulla Oblongata part of the brainstem that controls vital life-sustaining functions such as heartbeat, breathing, blood pressure, and digestion
Brain Stem the part of the brain that lies between the cerebellum and spinal cord that controls the body's involuntary actions
Frontal Lobe the lobe at the front of the brain associated with movement, speech, and impulsive behavior, reasoning, planning, emotions, and problem solving
Parietal Lobe portion of the brain posterior to the frontal lobe, responsible for sensations such as pain, temperature, and touch
Occipital Lobe portion of the brain posterior to the parietal and temporal lobes, responsible for vision
Temporal Lobe portion of the brain that lies below the frontal lobe, responsible for hearing, taste, and smell
Penis male reproductive organ
Vagina female reproductive organ
Scrotum external sac that contains the testes
Testes the male gonads, which produce sperm and secrete male sex hormones.
Ovaries the female gonads that store the ova and produce female sex hormones
Fallopian Tubes tubes which carry eggs from the ovaries to the uterus and which provides the place where fertilization occurs
Uterus organ of the female reproductive system in which a fertilized egg can develop
Fetus name given to a human embryo after eight weeks of development until birth
Embryo the developing human organism from about 2 weeks after fertilization through the second month
Placenta organ in placental mammals through which nutrients, oxygen, carbon dioxide, and wastes are exchanged between embryo and mother
Morula solid ball of cells that makes up an embryo; in humans, this stage occurs within four days of fertilization.
Neurulation the development of the nervous system
Blastula The hollow ball of cells marking the end stage of cleavage during early embryonic development.
Smooth ER site of lipid synthesis
Pons a band of nerve fibers linking the medulla oblongata and the cerebellum with the midbrain

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