Matter answer key biochemistry the composition of living matter use the key choices to identify the substances described in the following statements insert the appropriate letters or corresponding terms in the answer blanks key choices b bases a acids 5 6 d salts c buffer sas 3 substances that ionize. Question chapter 2 basic chemistry 23 biochemistry the composition of living matter 14 use the key choices to identify the substances described in the following statements insert the appropriate letter or corresponding term in the answer blanks key choices a acids 1 b bases c buffer d sals 3 substances that ionize in water good electrolytes 4 . Biochemistry the composition of living matter use the key choices to identify the substances described in the following statements insert the appropriate letters or corresponding terms in the answer blanks key choices b bases a acids 5 6 d salts c buffer sas 3 substances that ionize in water good electrolytes proton h acceptor. Composition of living matter in biochemistry the chemical composition of living matter distinguish between organic and inorganic compounds organic contain carbon carbohydrates sugars starches contain c h o in a 121 ratio mono di polysaccharides simple sugars strung together by dehydration. Chemistry of life packet 1 answer key 1 the chemistry the composition of living matter use the key choices to identify the substances described in the following statements biochemistry the composition of living matter worksheet answers the composition and reaction of living matter explain why some elements such as sodium have odd symbols