AP Biology Test Review

Which of the following is most closely related to the secondary structure of proteins?

• lipids

• peptide bonds

• alpha helix

• cellulose

The process by which protein conformation is lost or broken down is

• dehydration synthesis

• translation

• denaturation

• hydrolysis

The tremendous variation and unique properties of proteins are most likely a result of

• interactions between R groups of the amino acids

• hydrogen bonds lining amino acids

• the sequence of amino acids in the primary structure of the protein

• peptide bonds lining amino and carboxyl groups

Because of the unique properties of water associated with hydrogen bonding, water evaporates from pores on leaves of plants and draws water molecules in a continuous chain from the roots up through the vascular tissues of plants. Which of these groups of terms describes the process and properties of water that explain this?

• adhesion, cohesion, and translocation

• adhesion, cohesion, and transcription

• cohesion, hybridization, and transpiration

• cohesion, adhesion, and transpiration

How do phospholipids interact with water molecules?

• Phospholipids dissolve in water.

• The polar heads avoid water; the nonpolar tails attract water (because water is polar and opposites attract).

• The polar heads interact with water; the nonpolar tails do not.

• Phospholipids do not interact with water because water is polar and lipids are nonpolar.

The image below shows a polymer of glucose molecules. What type of macromolecule is this?

• carbohydrate

• protein

• lipid

• nucleic acid

The image depicts which level of structure in proteins?

• primary

• secondary

• tertiary

• quaternary

Which biomolecule is this a picture of?

• Protein

• Nucleic Acid

• Lipid

• Carbohydrate

What element is the basis for all organic molecules?

• nitrogen

• hydrogen

• oxygen

• carbon

Tags

NGSS.HS-LS1-6

What process is happening that splits the sucrose molecule into one glucose and one fructose molecule?

• dehydration synthesis

• hydrolysis

• capillary action

• carbon cycle