Science Quiz / AP Biology Terms (ABA- Grana)

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Can you name the AP Biology Terms?

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definitionterm
nonvascular plants like mosses
the presence of two or more phenotypically distinct forms of a trait in a single population, such as two varieties of peppered moths, black ones and white ones
a type of photosynthetic plant cell that is tightly packed around the veins in a leaf
a neurotransmitter
participates directly in the light-dependent reactions of photosynthesis
the external surface of a plasma membrane that is important for cell-to-cell communicatoin
the most common lethal genetic disease in the US; characterized by a buildup of extracellular fluid in the lungs and digestive tract
released by the posterior pituitary, its target is the collecting tube of the nephron
a channel in a plasma membrane for one specific ion, such as sodium or calcium. in the terminal branch of a neuron, it is responsible for the release of neurotransmitter into the s
Plant hormone that inhibits growth, closes stomates during times of water stress and counteracts breaking of dormancy.
the protein shell that encloses viral DNA or RNA
any process that absorbs energy
the site of photosynthesis in plant cells
plant hormone that promotes stem elongation
one type of learning in which one stimulus becomes linked, through experience, to another
part of the developing embryo that will become the upper part of the stem and the leaves of a plant
an enzyme found in red blood cells that catalyzes the conversion of carbon dioxide and water into carbonic acid as part of the system that maintains blood pH at 7.4
chemicals that stimulate helper T cells, B cells, and killer T cells
the network of cell walls and intercellular spaces within a plant body that permits extensive extracellular movement of water within a plant
the final, stable community in an ecosystem
an electrical state where the inside of an excitable cell is made less negative compared with the outside. if an axon is depolarized, an impulse is passing
the bright, often red or orange coloration of poisonous animals as a warning that predators should avoid them
carbon becomes fixed or incorporated into a molecule of PGAL. This happens during the Calvin cycle
cloaks the capsid of a virus and aids the virus in infecting the host. derived from membranes of host cells
muscles of glands
the common type of plant
a hormone released by the hypothalamus that stimulates other glands to release their hormones
an inactivated X chromosome seen as a condensed body lying just inside the nuclear envelope
a neurotransmitter
the tightly packed layer of cells that surrounds the vascular cylinder in the root of a plant
a trophic process in which substances in the food chain become more concentrated with each link of the food chain
part of a flowering plant that produces male gametophytes
a coenzyme that carries protons or electrons from glycolysis and the krebs cycle to the electron transport chain
the site at which a crossover and recombination occurs
organisms that sythesize their own nutrients
collar cells that line the body cavity and have flagella that circulate water in sponges
structures, such as a bat's wing and a fly's wing, that have the same function, but the similarity is superficial and reflects an adaptation to similar environments, not a common a
a subdivision of flowering plants whose members possess an embryonic seed leaf made of two halves or cotyledons
produces antibodies
a cross between individuals that are hybrid for two different traits, such as height and seed color
an enzyme that breaks down excess neurotransmitter
one of many neurotransmitters.
membranes in the chloroplast where the light reactions occur
a system of transport channels inside a eukaryotic cell
a form of photosynthesis that is an adaptation to dry conditions; stomates remain closed during the day and open only at night
a shallow groove in the cell surface in an animal cell where cytokinesis is taking place
a mechanism or strategy to maximize the rate of diffusion. this is a major strategy to transport substances across membranes passively, such as in the nephron
stinging cells in all cnidarians
either of the two strands of a replicated chromosome joined at the centromere
plant cells with unevenly thickened primary cell walls that are alive at maturity and that function to support the growing stem
a neurotransmitter
the movement of alleles into or out of a population
one type of associative learning that is widely accepted because of the ingenious work of Ivan Pavlov associating a novel stimulus with an innately recognized one
the maximum rate at which a population could increase under ideal conditions
organisms, like bacteria and fungi, that recycle nutrients back to the soil
a characteristic of normal cells grown in culture that causes cell division to cease when the culture becomes too crowded
the technology of manipulating genes for practical purposes
a double membrane down the midline of a dividing plant cell between which the new cell wall will form
the monoploid generation of a plant
branching evolution occurs when a new species branches out from a parent
the intentional selection of specific individuals with desired traits for breeding
a symbiotic relationship where one organism benefits and one is unaware of the other organism (+/o)
certain traits whose expression varies, depending on the parent from which they are inherited. diseases that result from imprinting are prader-willi and angelman sydromes
the kingdom that consists of heterotrophs that carry out extracellular digestion and have cell walls made of chitin
fat tissue
force of attraction between molecules of water due to hydrogen bonding
a sequence of membrane proteins that carry electrons through a series of redox reactions to produce ATP
definitionterm
factors, such as starvation, that increase directly as the population density increases
part of the light-dependent reactions in photosynthesis where electrons travel on a short-circuit pathway to replenish ATP levels only
part of the digestive tract of many animals where food is temporarily stored until it can continue to the gizzard
cells that nourish neurons
division of the cytoplasm
the tail-like structure that propels some single-celled organisms. consist of microtubuls
a nucleotide that binds to thymine and uracil. it is a purine.
a complex network of protein filaments that gives a cell its shape and helps it move
the expression of two or more genes where each depends upon the alleles of the other in order for a trait to show
a regulatory protein whose levels fluctuate cyclically in a cell, in part, related to the timing of cell division
the range of expression of mutant genes
a plant hormone that stimulates stem elongation and growth, enhances apical dominance, and is responsible for tropisms
nonliving and includes temperature, water, sunlight, wind, rocks, and soil.
a primitive form of sexual reproduction that is characteristic of bacteria and some algae
the types of genes an organism has
an iron-containing pigment present in the electron transport chain of all aerobes
an organelle in eukaryotes that lies near the nucleus and that packages and secretes substances for the cell
the global ecosystem
one of two structures in animal cells involved with cell division
a chromosomal mutation where a fragment is lost during cell division
change in the gene pool due to chance
cells that line the gastrovascular cavity in cnidarians
a virus that attacks bacteria
evolution that occurs when unrelated species occupy the same environment and are subjected to similar selective pressures and show similar adaptations
the preferential growth of a plant upward (toward the sun), rather than laterally
the reciprocal exchange of genetic material between nonsister chromatids during synapsis of meiosis I
the complex of DNA and protein that makes up a eukaryotic chromosome.
a specialized region in a chromosome that holds the two chromatids together
a synonym for anaerobic respiration. the anaerobic breakdown of glucose into pyruvic acid
the particular three-dimensional shape of a protein molecule
the theory that organisms descend from a common ancestor gradually, over a long period of time, in a linear or branching fashion
the branch of the vertebrate peripheral nervous system that controls involuntary muscles
a kinase whose activity depends on the level of dyclins and what controls the timing of cell division
consumers that derive their nutrition from nonliving, organic matter
organisms that can live without oxygen in the environment
a type of enzyme that changes its conformation and its function in response to a modifier.
two separate genes control one trait, but one gene masks the expression of the other gene
the three-base sequence of nucleotides at one end of a tRNA molecule
a genetic condition caused by trisomy 21
convert nitrates (NO3) into free atmospheric nitrogen
two genes interact to produce a novel phenotype
the pathway along which food is transferred from one trophic level to the next
this theory states that mitochondria and chloroplasts were once free-living prokaryotes that took up residence inside larger prokaryotic cells in a permanent, symbiotic relationshi
evolution that is caused by two species that interact and influence each other. all predator-prey relationships are examples
the type of immunity when an individual makes his or her own antibodies after being ill and recovering or after being given an immunization or vaccine
photosynthetic plants that grow on other trees rather than supporting themselves
the genus name for the bacterium that produces botulism, a very serious form of food poisoning
all the organisms living in one area
acts as an antenna pigment, expanding the wavelengths of light that can be used to power photosythensis
a nine-step, anaerobic process that breaks down one glucose molecule into two pyruvic acid molecules and four ATP
an enzyme produced in all cells to decompose hydrogen peroxide, a by-product of cell respiration
a variation in some trait of individuals coordinated with some gradual change in temperature or other factor over a geographic range
one type of mutation caused by a deletion or addition where the entire reading sequence of DNA is shifted
the main component of the waxy cuticle covering leaves to minimize water loss
very large regions of the earth, named for the climatic conditions and for the predominant vegetation. ex, marine, tropical rain forest, and desert
a structural polysaccharide found in the cell walls
thin protein filaments that interact with myosin filaments in the contraction of skeletal muscle
a gaseous plant hormone that promotes fruit ripening and opposes auxins in its actions
selection where one phenotype replaced another in the gene pool
the positive pole in an electrolytic cell
the process of leaves falling of a tree or bush.
accessory photosynthetic pigment that is yellow or orange
a protective jacket of cells that prevents some plants' gametes and zygotes from drying out
a chemical secreted by blood vessel endothelium and monocytes during an immune response to attract phagocytes to an area
the negative pole in an electrolytic cell
factors, such as earthquakes, whose occurrence is unrelated to the population density
a fundamental mechanism in the development of immunity. antigenic molecules select or bind to specific B or T lymphocytes, activating them. The B cells then differentiate into plas
definitionterm
a chemical fixative often used in the preparation of tissue for electron microscopy
animals that can raise their body temperature, although they cannot maintain a stable body temperature
the germ layer that gives rise to the skin and vervous system
the breakdown of glucose into pyruvic acid with the release of a small amount of atp without oxygen
a rapid change in the membrane of a nerve or muscle cell when a stimulus causes an impulse to pass.
translates as 'true feeding'. a process begun by the entrance of large amounts of nutrients into a lake, ultimately ending with the death of the lake
a type of lymphocyte that kills infected body cells and cancer cells
a plant with anatomical and biochemical modifications for a dry environment, examples are sugarcane and corn
located in the cristae of mitochondria and thylakoids of chloroplasts, these are membrane channels that allow protons to diffuse down a gradient in the production of ATP
the limit to the number of individuals that can occupy one area at a particular time
the three-base sequence of nucleotides in mRNA
the process by which cells expel substances
the first 12 inches (30 cm) of the human small intestine
structures in plants that produce male gametes
an important part of the immune system, a group of about twenty proteins that assists in lysing cells
the general term for the overall movement of a fluid in one direction in an organism, such as sap flowing in a tree or blood flowing in a human
the formation of new species caused by separation by geography, such as mountain ranges, canyons, rivers, lakes, glaciers, altitude, or longitude
animals in which the blastopore becomes the anus during early embryonic development
structures in plants that produce female gametes
caused by pollutants in the air from combustion of fossil fuels. The pH is less than 5.6
the sequential rebuilding of an entire ecosystem after a disaster
gland in the brain that releases many hormones, including growth hormone, luteinizing hormone, thyroid-stimulating hormone, adrenocorticotropic hormone, and follicle-stimulating ho
a digestive cavity with only one opening, characteristic of cnidarians
a protein that serves as a catalyst
hairlike extensions from the cytoplasm used for cell locomotion
cells with internal membranes
any process that gives of energy
the embryonic germ layer that gives rise to the viscera, the digestive tract, and other internal organs
a scientific naming system where every organism has a unique name consisting of two parts: a genus name and a species name
the body cavity that arises from within the mesoderm and is completely surrounded by mesoderm tissue
an organism whose body is made of only two cell layers, the ectoderm and the endoderm. the two are connected by a noncellular layer called the mesoglea. includes porifera and cnida
any abnormal number of a particular chromosome.
a hormone released from the anterior pituitary that stimulates the ovarian follicle
an innate, highly stereotypic behavior, which when begun, is continued to completion, no matter how useless
an example of genetic drift that results from the reduction of a population, typically by natural disaster. The surviving population is no longer genetically representative of the
a form of selection that acts to decrease the frequency of the more-common phenotypes and increase the frequency of the less-common types
a cyclical metabolic pathway in the dark reactions of photosynthesis that fixes or incorporates carbon into carbon dioxide and produces phosphoglyceraldehyde (PGAL), a three-carbon
the process by which ATP is produced from the flow of protons through an ATP-synthetase channel in the thylakoid membrane of the chloroplast during the light reactions of photosynt
an enzyme that permanently attaches pieces of DNA together
genes outside the nucleus, in the mitochondria and chloroplasts
the type of inheritance when there is no trait that dominates over another; both traits show
another name for the krebs cycle
plant hormone that stimulates cell division and delays senescence (aging)
the internal membranes of mitochondria that are the site of the electron transport chain
a molecule with both a positive and negative pole.
the food source for the growing embryo in monocots
produced by B lymphocytes and destroy antigens
the emergence of numerous species from one common ancestor introduced into an environment
a model of the food chain that demonstrates the interaction of the organisms and the loss of energy
found in sponges, these cells are mobile and perform numerous functions, including reporduction, transport of food particles to nonfeeding cells, and secretion of material that for
an example of genetic drift, when a small population breaks away from a larger one to colonize a new area; it is most likely not genetically representative of the original larger p
the interconnected feeding relationships of organisms in an ecosystem
the sensory processes of a neuron
flowering plants.
selection that increases the extreme types in a population at the expense of intermediate forms
a nucleotide that binds with guanine. a pyrimidine
all the organisms in a given area as well as the abiotic (nonliving) factors with which they interact
a hormone that helps control metamorphosis in insects
accessory photosynthetic pigment that expands the wavelengths of light that can be used to pwer photosynthesis
programmed cell death
the copycat coloration where one harmless animal mimics the coloration of one that is poisonous. an example is the viceroy butterfly, which is harmless but looks similar to the mon
connected to each sieve tube member in the phloem and nurtures the sieve tube elements
strands for expressed sequences of DNA. these are genes
evolution that occurs when a population becomes isolated (for any reason) from the rest of the species, becomes exposed to new selective pressures, and evolves into a new species
part of the digestive tract of many animals. it is the site of mechanical digestion
a ripened ovary of a flowering plant

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Created May 2, 2010ReportNominate
Tags:Biology Quiz, term

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