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| a searching inquiry for ascertaining facts detailded or careful examination. |
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| is the protection of the environment from the effects of pollution of human activity |
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| a method of reserch in which a problem is identified |
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| a educated guess that ca be tested or investigated |
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| a group of measurements fact or statistics |
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| the process of arriving at some conclusion |
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a tiny somewhat mitten-shaped organella acurring
ingreat numbers |
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| a simplified represenstation of a system or phenomenom as in science or economics |
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| a general principle that explains or predicts facts or events |
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| a cell with a true nucleus; a cell with a nuclear membrane and organelles |
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| a special part of a cell having some specific function |
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| the central part of an atom, Which makes up 99.9% of the atoms mess |
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| A cell lacking a true membrane bound nucleus |
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| The semipermable membrane enclosing the cytoplasm of a cell. |
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| The wall that is part of the outer structure of centrum cells. |
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| is am eukaryotic organelle that forms an interconnected network of tubules, vesicles, and cisternae within cells |
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| The golgi apparatus is an organelle found in most eukaryotic cells. |
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| is a membrane-enclosed organelle found in most eukaryotic cells. |
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| a vacuole is a membrane bound organelle which is present in all plant and fungal cells and some protist animal and bacterial cells |
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| an organelle found in the cytoplasm of most cells. |
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| are organelles found in plant cells and other eukaryotic organisms the conduct photosynthesis. |
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| a chromosomes is an organized structure DNA and protein that is found in cells. It is a single piece of coiled DNA containing many genes. |
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| metabolic equilibrium actively maintained by several complex biological mechanisms the operate via the automomis nervous system to offset disrupting changes |
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| Endocytosis is the process by which cells absorbs molecules from outside the cell by engulfing it with their cellmembrane |
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| infiltration of the epidermis by flammatory or circulating blood cells |
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| the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration |
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| means moving biochemicals and atomic or molecular substances across the cell membrane |
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| the charatistic of allowing only certain substances from the outside enviorment to enter the cell |
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| diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place lower concentration until the concentration on both sides is equal |
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| movement of specific molecules across cell membranes through protein channels |
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| active transport invovles the transportation of things from a region of lower concentration to a higher concentration |
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| Protein synthesis is the process in which cells build proteins |
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| is a process that converts carbon dioxide in organic compounds especially sugars using the energy from sunlight |
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| a monosaccharide sugar that has several forms ; an important source of physiological energy |
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| is the property of a solid, liquid, or gaseous chemical substance called solute to dissolve in a liquid solvent to form a homogeneous solution of the solute in the solvent. |
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| is the number of moles of solute dissolved in one liter of solution. |
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| is the measure of how much of a given substance there is mixed with another substance. |
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| a compound usually having a sour taste and capable of neutralizing alkalis and reddening blue litmus paper, containing hydrogen that can be replaced by a metal or an electropositive group to form a salt, or containing an atom that can accept a pair of electrons from a base. Acids are proton donors that yield hydronium ions in water solution, or electron-pair acceptors that combine with electron-pair donors or bases. |
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| a substance that can accept hydrogen ions |
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| is any substance containing free ions that make the substance electrically conductive |
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| is the physical process of converting an atom or molecule into an ion by adding or removing charged particles such as electrons or other ions |
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| The combination of a substance with oxygen. A reaction in which the atoms in an element lose electrons and the valence of the element |
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| The amount of a substance that contains as many atoms, molecules, ions, or other elementary units as the number of atoms |
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| as the bond formed between any two metal atoms which can be either similar or different leading to form an metallic compound |
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| is the amount of energy it takes to detach one electron from a neutral atom |
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| is the formation of a solid in a solution or inside another solid during a chemical reaction or by diffusion in a solid. |
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| is a measure of mass per volume. |
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| metrics measure how well the methods of a class are related to each other. |
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| is any attraction process between dissimilar molecular species that can potentially bring them in "direct contact". |
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| The rate or a measure of the rate of motion, especially: Distance traveled divided by the time of travel |
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| is the rate of change of position |
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| strength; energy; vigor; power |
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| A unified body of matter with no specific shape |
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| is the rate of change of velocity as a function of time |
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| is the force that opposes the relative motion or tendency of such motion of two surfaces in contact |
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| A measure of the heaviness of an object. |
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| the rate at which work is performed or energy is converted |
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| A device consisting of fixed and moving parts that modifies mechanical energy and transmits it in a more useful form |
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| is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated |
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| is the change in direction of a wave due to a change in its speed |
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| The quality or property of being efficient. |
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| The physical or mental effort expended in the performance of a task |
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| in physics, the superposition of two or more waves resulting in a new wave pattern |
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| to be the mass of an object multiplied by the velocity of the object |
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| Physics A form of energy associated with the motion of atoms or molecules and capable of being transmitted through solid and fluid |
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| the atomic radius of a chemical element is a measure if the size of its atoms |
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| is the movement of molecules within fluids |
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| is the transfer of thermal energy between neighboring molecules in a substance due to a temperature gradient |
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| is a disturbance that propagates (travels) through space and time, usually by transference of energy |
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| The phenomenon of absorption of certain frequencies of radio and microwave radiation by atoms placed in a magnetic field |
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| acting on a body causes that body to accelerate; that is, to change its velocity. |
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| is a biologically important type of molecule that consists of a long chain of nucleotide units. |
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| is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms |
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| A symbiotic relationship between two organisms of different species in which one derives some benefit while the other is unaffected. |
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any combustible organic material, as oil, coal, or natural gases, derived from the remains of former life. |
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| a taxonomic category of the highest rank, grouping together all forms of life having certain fundamental characteristics in common: in the five-kingdom classification scheme adopted by many biologists, separate kingdoms are assigned to animals (Animalia), plants (Plantae), fungi (Fungi), protozoa and eucaryotic algae (Protista), and bacteria and blue-green algae (Monera). |
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the part of a vascular bundle consisting of sieve tubes, companion cells, parenchyma, and fibers and forming the food-conducting tissue of a plant. |
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the nonliving epidermis that surrounds the edges of the fingernail or toenail. |
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an ultramicroscopic (20 to 300 nm in diameter), metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA or DNA core, a protein coat, and, in more complex types, a surrounding envelope. |
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| the aggregate of bacteria, fungi, and other microorganisms normally occurring on or in the bodies of humans and other animals |
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| one of the system of branching vessels or tubes conveying blood from various parts of the body to the heart |
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| is most commonly used to refer the energy rquired to remove (to infinity) the outer most electron in the atom or molecule is isolated in free space and is in its ground electronic state |
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| the effective nuclear charge is the net positive charge experienced by an electron in a multi- electron atom |
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the electron affinity of a molecule or atom is the energy change when an electron is added to the neutral species to form a negative ion.
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| the tendency of an atom or radical to attract electrons in the formation of an ionic bond |
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| an ionic bond is type of chemical bond that invovles a metal and a nonmetal ion (or polyatomic ions such as ammonium) through electrostatic attraction. |
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| a chemical bond that invovles sharing a pair of electrons between atoms in a molecule |
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| a chemical bond in which electrons are shared over many nucleu and electronic consuction occurs |
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| in a chemical change bonds are broken and new bonds are formed between different atoms. This breaking and forming of bonds takes place when particles of the original material collide with one another. |
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| separate as a fine suspension of solid particles |
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| the process of oxidizing the addition of oxygen to a compound with a loss of electrons |
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| a chemical property is any of material properties that becomes evident during a chemical reaction |
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| is a process that leads to the tansformation of one set of chemical substances to another |
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| catalysts are said to reduce the energy of activation during the transiton phase of a reaction |
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| a reaction that is thermodynamically favorable and will occur spontaneously |
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| Newtons first law of motion |
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| a body remains at rest or in motion with a constant velocity unless acted upon by an external force |
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| Newtons second law of motion |
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| second law of motion the rate of change of momentum is proportional to the imposed force and goes in the direction of the force |
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| the resistance encountered when one body is moved in contacted with another |
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| the principle that the total linear momentum ina closed system is constant and is not affected by processes occuring inside the system |
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| the ratio of the force exerted by a machine tot he force applied to it |
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