Anatomy Ch 2 Crossword
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
 
 
Down: 1) a chemical bond formed btwn 2 ions by transfer of electrons2) 3.2 % of the body (fourth)3) an electrically charged atom or molecules4) chemical substances that lack carbon and hydrogen6) a weak chemical bond btwn a hydrogen atom and an atom of oxygen or nitrgoen9) a substance composed of 2 or more chemically bonded elements10) a molecule composed of bonded nucleotides RNA and DNA12) 0.3 % of the body (sixth)14) carbon-containing momlecules15) nitrogen-containing organic compound of joined amino acid molecules16) a protein that catalyzes a specific biochemical reaction17) an atom that has the same number of protons as other atoms of an element but has different number of neutrons Across: 5) 4.5% of the body (third)7) an organic compound consisting of carbon, hydrogen, and oxygen8) chemical bond formed by electron sharing btwn atoms11) 1.0% of the body (fifth)13) a building block of a nucleic acid molecule consisting of a sugar, a nitrogenous base, and a phosphate group18) Is 65% of the body (the first)19) 18.5% of the body (second)20) a fat oil or fat-like compound that usually included fatty acids21) a chemical that increases the rate of a chemical reaction but is not permanently altered by the reaction
 

 

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