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25 Cards in this Set
- Front
- Back
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Emergent Properties
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New Properties that arise with each step upward in the hierarchy of life
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Negative Feedback
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A primary mechanism of homeostasis, where buy a change and Ike psychological variable triggers a response that counteracts the initial change
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Positive Feedback
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A physiological control mechanism in which a change in a variable trigger mechanisms that amplify the change
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Polar covalent bonds
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I could fail and bonds between atoms that differ an electrode negativity to share electrons are poo closer to the more electronegative atom making it slightly negative and the other atoms slightly positive
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Nonpolar covalent bond
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A type of covalent bond in which electrons are shared equally between two atoms of similar electronegativity
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Ionic bond
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A chemical bond resulting from attraction between oppositely charged
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Hydrogen bond
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A type of weight can a coupon that is formed when the slightly positive hydrogen atom of a polar covalent bond and one molecule is attracted to the slightly negative atom of a polar covalent bond another molecule
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Cohesion
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Binding together of like molecules often by hydrogen
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Adhesion
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Detraction between different kinds of molecules
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Polar molecule
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A molecule such as water with opposite charges on different ends of the molecule
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Surface tension
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A measure of how difficult it is to stretch your break the surface of a liquid water has a high surface tension because of the hydrogen bonding a surface molecules
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Kinetic energy
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The energy associated with the relative motion of objects moving matter can perform work by imparting motion to other matter
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Heat
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How do I mount of kinetic energy due to the random motion of atoms or molecules in a body of matter also called thermal energy
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Temperature
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a measure of the intensity of he and degrees reflecting the average kinetic energy of the molecules
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specific heat
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Amount of heat that must be absorbed or less for 1g of a substance to change his temperature by 1 degree Celsius
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Evaporative cooling
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The process in which the surface of an object becomes cooler during evaporation I went to a change in the molecules are the greatest kinetic energy from the liquid state
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Heat of vaporation
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The quantity of he open must have job for 1g of it to be converted from the liquid to the gaseous state
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Hydrophobic
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Water frightened
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Hydrophilic
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Likes water
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Aqueous solution
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Solution in which water is the solvent
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Isomer
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One of several compounds with the same molecular formula but different structures and therefore different properties
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Condensation reaction
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A reaction in which two molecules become covalently bonded to each other through the loss of a small molecule usually water in which case is also called a dehydration reaction
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Enzyme
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A macromolecule serving as a catalyst a chemical agent that changes the right of a reaction without being consumed by the reaction
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Peptide bond
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The covalent bond between the carboxyl group on one amino acid and the amino acid of another group
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Denaturation
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in proteins, a process in which a protein unravels and loses its made up shape, there by becoming biologically inactive in DNA separation of the two strands of the double helix
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