chapter 3
A molecule with the formula C 55H 110O 55 is probably a(n)
polysaccharide.
Which of the following statements regarding triglyceride molecules is false?
Triglycerides are hydrophilic.
Which of the following is an example of secondary structure in a protein?
an alpha helix
A hydroxyl group is
characteristic of alcohols
DNA differs from RNA because DNA
contains thymine in place of uracil
The storage form of carbohydrates is ________ in animals and ________ in plants.
glycogen . . . starch
The results of dehydration synthesis can be reversed by
hydrolysis
In what part of the world did the mutation for lactose tolerance first appear?
northern europe
Amino acids can be distinguished from one another by
the chemical properties of their R groups.
Proteins differ from one another because
the sequence of amino acids in the polypeptide chain differs from protein to protein.
Cows can derive nutrients from cellulose because
their intestinal tract contains cellulose-hydrolyzing microorganisms.
A disaccharide forms when
two monosaccharides join by dehydration synthesis
Peptide bonds
Bonds between amino acids
Which of the following statements about the monomers and polymers found in living organisms is false?
Monomers are joined together by the process of hydrolysis.