72. Use Figure 2 to answer the following questions. (1.4) KU HOCH, OH H С — с H. ОН ОН ribose Figure 2 (a) Which type of molecule does this diagram represent? (b) What is the chemical formula for this molecule (c) What group of macromolecules does this molecule belong to?
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- A food contains organic molecules with the elements C, H, and O in a ratio of 1:2:1. What class of com- pounds do these molecules represent, and what are their major functions in the body?How would the properties of the various classes of biological molecules be altered if you were to replace all the oxygen atoms with sulfur atoms?Lemon juice contains citric acid (C6H8O7). What speciesserves as a base when lemon juice is mixed with bakingsoda (sodium hydrogen carbonate) during the preparationof some lemon cookies?
- Which generic class of reaction results inthe phosphodiester bonds of nucleic acids,analogous to the peptide bonds of polypeptides?How many times larger is the number of hydrogen atoms than oxygen atoms in a molecule of glucose?Of what units are nucleic acids constituted? What are the chemical entities that compose that unit?
- 3b) Both cysteine and methionine have sulfer in their side groups, but only cysteine side groups for disulfide bonds. Why don't methionine side groups also form covalent bonds with each other (or with a cysteine side group)?What are the four macromoleculesWhich functional groups are present in digitoxin? a. To what lipid family does the complex ring drawn to the right of the structure belong? b. Identify the type of glycosidic bond that joins each of the monosaccharide residue in the molecule c. Draw the open form of the monosaccharide used to produce the trisaccharide portion of digitoxin.