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Bond Polar Occur Covalent Carbon Explain Hydrogen Choose

Front Consider the following carbohydrate and answer the questions





a) Name each bond or interaction that is circled in the schematic above. Explain why you selected these options. Choose from polar covalent, nonpolar covalent, ionic, hydrophobic, van der Waals.


b) Would you expect this polymer to be soluble in an aqueous environment? Explain your answer.


c) What type of bonds or interactions can occur between two such polymers? Choose from: covalent, hydrogen, hydrophobic, ionic, van der Waals. Explain your answer.
Back a) • Bond #1 (C-C): Non-polar covalent because carbon always forms covalent bonds in biological systems and both carbon atoms have the same electronegativity making the bond non-polar

• Bond #2 (C-OH): Polar covalent because carbon and oxygen have different electronegativities. Oxygen is much more electronegative than carbon and pulls the electrons more towards itself making the bond polar.


b) Yes, because a polar molecule (see above) is solube in another polar one as water (through hydrogen bonding)


c) Hydrogen bonds can occur between the two polymers. The exposed OH groups allow for easy hydrogen bonding between molecules. There are no charged groups so ionic bonds cannot occur and covalent bonds cannot occur without an enzyme or catalys

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