A&P - Chap 2 Word Scramble
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Question | Answer |
energy | no mass, does not take up space, can be measured only by its effects on matter; the capacity to do work |
chemical energy | energy stored in the bonds of chemical substances |
adenosine triphosphate | ATP |
electrical energy | the movement of charged particles |
radiant (electromagnetic) energy | energy that travels in waves on the electromagnetic spectrum |
isotope | have the same atomic number but vary in their mass numbers due to different numbers of neutrons |
radioisotopes | isotopes that perform radioactive decay |
solutions | homogeneous mixtures of two or more components |
solvent | substance present in the greatest quantity |
solute | substance present in smaller amount |
mole | an amount of substance equal to its atomic (molecular) weight |
avogadro's number | 6.02 x 10^23 |
colloids | heterogeneous mixtures that appear translucent or milky |
sol-gel transformations | to change reversibly from a fluid to a more solid state |
octet rule | except for shell 1, atoms interact where they must have 8 electrons in their valence shell |
crystals | in absence of water, cations and anions are held together by ionic bonds |
electronegativity | capability to attract electrons |
electropositive | electron attracting ability is low and they usually lose their valence shell to other atoms |
dipole | polar molecule |
synthesis reaction | atoms or molecules combine to form a larger molecule |
anabolic | constructive activities |
catabolic | destructive activities |
decomposition reaction | bonds are broken to form smaller particles |
exchange/displacement reactions | include both decomp and synthesis reactions |
oxidation-reduction (redox) reactions | hybrid reactions that can be classified as both decomp and exchange reactions |
oxidized | the electron donor |
reduced | electron acceptor |
exergonic | energy releasing |
endergonic | energy absorbing |
catalyst | substances that increase the rate of chemical reactions |
enzymes | biological catalysts |
organic compounds | contain carbon |
hydrolysis reactions | breakdown by water |
dehydration synthesis | water is removed from every chemical bond |
electrolytes | substances that conduct current in solution |
acid | releases hydrogen ions (H+) |
base | take hydrogen ions (H+), releases (OH-) |
carbohydrate | includes sugars and starches |
monosaccharide | one sugar |
disaccharide | two sugar |
polysaccharide | multiple sugar |
polymer | many polysaccharides |
triglycerides, triacylglycerols | neutral fats |
saturated fats | have single carbon bonds, solid |
unsaturated fats | have double or triple bonds, liquid at room temperature |
steroids | have hydrocarbon rings instead of chains |
fibrous proteins | structural proteins |
globular proteins | functional proteins (ex: enzymes) |
cofactor | needed by enzyme to carry out a certain function |
substrate | substance in which enzyme must bind on |
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