AP Biology Unit 1 Review

Which list of compounds characterizes RNA?

• a phosphate group, deoxyribose, and uracil

• a phosphate group, ribose, and uracil

• a phosphate group, ribose, and thymine

• an amino group, deoxyribose, and uracil

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

Hydrolysis is involved in which of the following?

• formation of starch, a polysaccharide, from monomers of glucose

• hydrogen bond formation between nitrogen bases of nucleic acids

• peptide bond formation between amino acids to form proteins

• the digestion of sucrose, a disaccharide to its monomers of glucose and fructose

The partial negative charge at one end of a water molecule is attracted to a partial positive charge of another water molecule. What is this type of attraction called?

• a polar covalent bond

• an ionic bond

• a non-polar covalent bond

• a hydrogen bond

Polymers of carbohydrates and proteins are all synthesized from monomers by which of the following processes?

• the joining of monosaccharides

• hydrolysis

• dehydration synthesis

• signal transduction

Tags

NGSS.HS-LS1-6

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

• interactions between R groups of the amino acids

• hydrogen bonds linking amino acids

• the utilization of hundreds of different amino acids in the primary structure of the protein

• peptide bonds linking amino and carboxyl groups

The attraction between an oxygen of one water molecule and the hydrogen of another is called a

• ionic bond

• covalent bond

• hydrogen bond

• Van der Waals interaction

Liquid water

• has a low specific heat

• is nonpolar

• is less dense than ice

• has a high specific heat compared to other substances

Tags

NGSS.HS-ESS2-5

NGSS.HS-PS3-4

Peptide bonds happen in

• carbohydrates

• lipids

• proteins

• nucleic acids

Tags

NGSS.HS-LS1-6

Which of the following is FALSE. Saturated fatty acids

• have double bonds

• are solid at room temperature

• are lipids

• are more common in animals