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| The science of the structure of living organisms |
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| The science of the functioning of living organisms |
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| The smallest part of an element; indivisible by ordinary chemical means |
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| The basic biological unit of living organisms, containing a nucleus and a variety of organelles enclosed by a limiting membrane |
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| Particle consisting of two or more atoms held together by chemical bonds |
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| A group of similar cells specialized to perform a specific function; primary tissue types are epithelial, connective, muscle, and nervous tissues |
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| A part of the body formed of two or more tissues that performs a specialized function |
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| A group of organs that work together to perform a vital body function; e.g., nervous system |
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| An individual living thing |
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| A state of body equilibrium or stable internal environment of the body |
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| An organ, gland, or muscle capable of being activated by nerve endings |
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| A corrective mechanism that opposes or negates a variation from normal limits |
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| Feedback that tends to cause a variable to change in the same direction as the initial change; enhances the stimulus |
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| Below, in reference to a particular structure, with the body in the anatomical position |
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| Farthest from the point of attachment of a limb or origin of a structure |
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| The sum total of the chemical reactions that occur in the body |
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| Some type of sensor that monitors and responds to changes in the environment |
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| Any of the building blocks of matter; oxygen, hydrogen, carbon, for example |
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| Substance composed of two or more different elements, the atoms of which are chemically united |
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| An atom with a positive or negative electric charge |
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| Ionic compound that dissociates into charged particles (other than hydrogen or hydroxyl ions) when dissolved in water |
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| A substance that accelerates a specific chemical reaction but that is not altered by the reaction |
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| A compound that lack carbon; for example, water |
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| A compound containing carbon; examples include proteins, carbohydrates, and fats |
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| A homogenous mixture of two or more components |
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| Subatomic particle that bears a positive charge; located in the atomic nucleus |
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| Nonsymmetrical molecules that contain electrically unbalanced atoms |
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| The symbol for hydrogen ion concentration; a measure of the relative acidity or alkalinity of a solution |
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| Anything that occupies space and has mass |
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| Dissociation; the breakdown of a molecule in solution to form ions |
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| (1) a chemical reaction that occurs between an acid and a base; (2) blockage of the harmful effects of bacterial exotoxins or viruses by the binding of antibodies to their functional sites |
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| A fundamental particle that does not carry a positive or a negative charge |
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| Weak bond in which a hydrogen atom forms a bridge between two electron-hungry atoms; an important intramo-lecular bond |
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| A substance that accepts hydrogen ions; proton acceptor; compare with acid |
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| A substance formed by living cells that acts as a catalyst in bodily chemical reactions |
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| A substance that breaks down into ions when in solution and is capable of conducting an electric current |
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| A substance that liberates hydrogen ions when in an aqueous solution; compare with base |
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| These vary in the number of neutrons they contain and they are different atomic form of the same element |
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Obtaining and using food/nutrients.
process by which living things increase in size or cell number
Growth
The process by which living things take in materials from its environment for growth and repair. |
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| The process by which living things eliminate waste products produced by cell activities (urine, carbon dioxide, nitrogen..) |
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| Movement of materials (oxygen, water, carbon dioxide) inside an organism or inside cells |
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| To make larger products from smaller parts. The process by which simple substances are combined to form complex substances |
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| The process by which living things increase in size or cell number |
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| To make energy (or ATP) in order to do the life functions. The breakdown of nutrients to yield or give off chemical energy. |
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| To produce offspring (babies, new cells) *The only life function that is not necessary for survival. |
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| The process where a living thing controls and coordinates its various activities (reflexes), uses nervous system and endocrine system |
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| To maintain an internal balance even when the outside environment changes (example: temperature regulation) |
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| All the chemical reactions that take place inside an organism |
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| The activities that a living thing must carry out in order to remain alive |
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N E T S G R R R Ho Me
Ho R N E T S - G R R - Me |
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| Acronym to remember life functions |
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1. Urinal system
2. Breathing
3. Sweating |
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| 3 Steps of digesting food |
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1. Ingestion (take in the food)
2. Digestion (break down the food)
3. Egestion (get rid of waste) |
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