help! QUESTION 4 1 ponto What type of molecule is shown below? -C-C-C-C-C-C-C-C-

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QUESTION 4 1 ponto What type of molecule is shown below? -C-C-C-C-C-C-C-C-C-H Phospholipid atty acid C Glycerol D Polysaccharide QUESTION 5 ponts Whith oe of the fellowing staterrients best describes fatty acids? They are hydrophilic beause they contain long polar hydrocarbon regions. E. They are hydrophobic because they contain long polar hydrocarbon regions E They are hydrophobic because they contain long nonpolar hydrocarbon regions. D They are hydrophillic because they contain lang nonpolar hydracarbon regions QUESTION 6 1 points ave Anower What is the classification of molecule is shown belou OH OH CH HO OH HO Carbohydrate K Lipid D Nucleic Acid QUESTION T 1 ponts What type of bon lis tcgether two monosaccharides i dsaccharidk? , Glycosidic E Phosphodiester

Explanation / Answer

Answer 4

The given molecule is neither phospholipid nor a polysaccharide because phospholipids contains phosphoric acid and frequently a nitrogenous base in their structure while polysaccharide have too many number of monosaccharide units. On the other hand, glycerol is a chemical compound comprising of 3 carbon atom with a hydroxyl group.

Therefore, the following diagram represents fatty acid which comprises of carboxylic acid with hydrocarbon side chain.

Hence, the correct option is b. fatty acid.

Answer 5

Fatty acid composed of carboxylic acid with hydrocarbon side chain where carboxylic group of a fatty acid is hydrophillic or polar in nature while rest of the hydrocarbons chain is non polar or water insoluble. Here, the polar end sticks to water so that fatty acids form a mononuclear layer over it. The water soluble end of fatty acid also reduces surface tension and increases the wetting power of water.

Hence, the correct option is d. They are hydrophillic because they have long non-polar hydrocarbon chains.

Answer 6

The following molecule is one of the lipid where the molecule composed of 17-Carbon nucleus of four fused hydrocarbon rings and a long side chain.

Hence, the correct option is B. lipids.

Answer 7

Phosphodiester bond is formed within the DNA structure while peptide bond is formed when an amino group of amino acid combines with the carboxyl group of amino acid. Similarly, ester are another kind of linkages found between fatty acids and glycerol.

When the aldos or ketose group react with alcoholic group of another organic compound. It lead to the formation of a bond thus termed as glycosidic bonds. these are established during the condensation of two monosaccharides for the formation of disaccharides.

Hence, the correct option is A. glycosidic bond

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