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32 Cards in this Set
- Front
- Back
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anatomy
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study of the structure of the body
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cells
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smallest living unit in the human body
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homeostasis
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maintenence of a relatively constant internal environment
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organ
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contains two or more types of tissue
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physiology
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study of function, deals with ways organisms perform vital activies
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ionic bond
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attraction of opposite charges
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covalent bond
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formed by sharing of two bonds,
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non polar- covalent
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flat, unequal sharing by atoms with different electron attracting abilities
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polar-covalent
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V shaped
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hydrogen bond
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attractive force between a hydrogen atom and two electrons
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anion
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negative charge, have gained one or more electrons
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cation
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positive charge, have lost one or more electrions
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synthesis reaction
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when atoms/molecules combine to form larger more complex molecules
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decomposition reaction
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a molecule is broken down into smaller molecules, AB=A*B
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exchange reaction
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both involve synthesis and decomposition
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tissue
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groups of similiar cells
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organ system
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organs that work closely together
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negative feedback
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a corrective mechanism that opposes or negates a variation from normal limits
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positive feedback
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a mechanism that increases a deviation from normal limits after an initial stimulus
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O
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Oxygen
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C
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Carbon
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h
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Hydrogen
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N
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Nitrogen
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Ca
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calcium
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K
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Potassium
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Na
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sodium
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P
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Phosphorus
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Carbohydrates
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major source of energy and structural molecules
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proteins
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structural role, regulatory role
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nucleic acid
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a polymer if nucleotides that contains a pentose sugar, a phosphate group, and one of four nitrogenous bases that regulate the synthesis of proteins and make up genetic material in cells.
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inorganic compound
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water, salts, and many acids and bases. do not contain carbon
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organic compound
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carbs, fats, proteins, and nucleic acids. contains carbon, usually large and are covalently bonded.
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