AP Biology Unit 8 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

Which two functional groups are always found in amino acids?

• amine and sulfhydryl

• hydroxyl and carboxyl

• carboxyl and amine

• phosphate group and nitrogenous base

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

Water makes up approximately 60% of the human body and plays a vital role in regulating body temperature. Which property of water makes it good at regulating temperature?

• Water is a good solvent.

• Water exhibits strong cohesion.

• . Water has an unusual crystalline structure.

• Water has a high capacity for heat.

Tags

NGSS.HS-PS3-4

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

Monomers combine to form ________ through the process of ________.

• polymers; hydrolysis

• polymers; dehydration synthesis

• monomers; hydrolysis

• monomers; dehydration synthesis

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

What element is the basis for all organic molecules?

• nitrogen

• hydrogen

• oxygen

• carbon

Tags

NGSS.HS-LS1-6