Which class of macromolecule generally contains the most phosphorus (P)?   a. nucleic acids   b. carbohydrates   c. proteins

Sucrose is composed of a molecule of glucose and a molecules of fructose. What type of carbohydrate is sucrose?   Group of answer choices a, polysaccharide b, disaccharide c, monosaccharide d, fruit sugar

2) dehydration reaction means ? A. molecules are breaking down by adding water. B. molecules are breaking down by removing water. C. forming a macromolecule by adding water. D. forming a macromolecule by removing water.

The ends of amino acids are labeled differently than the ends of nucleic acids because a. amino acids do not have carbons. b. amino acids do not have sugars. c. amino acids do not have bases. d. amino acids do not have phosphate groups.

What is true about lipids?  A. They are polar and therefore soluble in polar solvents B They are polar and therefore soluble in nonpolar solvents  C. They are nonpolar solvents D. They are nonpolar and therefore soluble in polar solvents

Which of the following describes the tertiary structure of proteins?   A. Helices and sheets formed from hydrogen bonds between the amino acids of polypeptides   B. The functional domains that form from interactions between different parts of the polypeptide   C. The association of multiple polypeptides   D. The linear sequence of amino acids making up the polypeptide

What types of bonds form between 5' and 3' carbons on the same strand of DNA/RNA? which answer choice? a. Hydrogen bond  b. Phosphodiester bond c. Peptide bond d. Ionic bond

Why are carbohydrates called "carbohydrates"? a. Apparently, carbohydrates contain water molecules. b. The composition (rather than the actual structure) of a carbohydrate seems to suggest that the molecule contains water molecules. c. carbohydrates are made from C and water. d. none of the above

How does a highly acidic solution denature proteins?   A. The excess protons interfere with a protein’s ability to form peptide bonds.   B. The lack of protons interferes with a protein’s ability to form peptide bonds.   C. The lack of protons interferes with a protein’s ability to form secondary structures.   D. The excess protons interfere with a protein’s ability to form secondary structures.

What level of protein structure includes polypeptide aggregates?   A. Secondary   B. Quaternary   C. Primary   D. Tertiary