Lactose, a sugar in milk, is composed of one glucose molecule and is linked to one galactose molecule. how is lactose classified?
A. as a pentose
B. as an enzyme
C. as a monosaccharide
D. as a disaccharide
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Inside cells, small organic molecules are joined together to form larger molecules. Which of these correctly pairs a monomer to the polymer it can form?
A. glucose - starch
B. amino acid - nucleic acid
C. phospholipid - fatty acid
D. ribosome - protein
What is the quaternary structure of a protein?
A. the sequence of amino acids
B. the initial folding into alpha helices or beta sheets
C. the folding of one amino acid chain into a functional protein
D. the interaction between multiple subunits to form one functional protein
The primary structure of a protein is
A. the hydrogen bonds formed between amino and carboxyl groups.
B. the sequence of amino acids as dictated by the gene.
C. the association of several polypeptide chains forming and active protein.
D. the R-group interactions giving the polypeptide a specific 3D structure.
Nucleotides are joined together in a phosphodiester bond by
A. hydrolysis.
B. oxidation-reduction.
C. combustion.
D. dehydration synthesis.
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