Exam 3: The Chemistry of Life: Organic Compounds

MATCHING Match the molecule with the appropriate word or phrase. a.carbohydrate c.nucleic acid b.lipid d.protein -monomers are joined by a glycosidic linkage

Figure 3-3 Use the figure to answer the corresponding question(s). -The molecular fragment represented in Figure 3-3 is:

Why is carbon ideally suited to be the "backbone" in molecules produced by living organisms?

Regulatory proteins:

MATCHING Match the molecule with the appropriate word or phrase. a.carbohydrate c.nucleic acid b.lipid d.protein -can be denatured by temperature and/or pH

If tyrosine and isoleucine undergo condensation, the new bond that is formed is between the:

MATCHING Match the molecule with the appropriate word or phrase. a.carbohydrate c.nucleic acid b.lipid d.protein -Methane, which is composed of carbon and hydrogen, lacks functional groups and is a gas at room temperature.Upon replacing one of the hydrogen atoms with a hydroxyl group, methane is converted to methanol, which is a liquid at room temperature.Explain the reason behind this difference in physical properties.

Figure 3-1 Use the figure below to answer the corresponding question(s). -The products of the process in Figure 3-1 are:

The phosphate group is a nonpolar group. __________________

The primary difference between the amino acids commonly found in proteins is in their:

A molecule of a saturated triacylglycerol contains:

Which of the following is responsible for the alpha-helical structure of proteins?

This molecule transmits heredity information:

MATCHING Match the molecule with the appropriate word or phrase. a.carbohydrate c.nucleic acid b.lipid d.protein -most are nonpolar

An essential amino acid is one that the body cannot synthesize in sufficient amounts. __________________