AP Biology Properties of Water

What is cohesion?

• The ability of a molecule to "stick" to itself

• The ability of a molecule to "stick" to other molecules

• Large amounts of energy are required to change the temperature of a substance

• A well-organized and efficient team

Tags

NGSS.MS-ESS2-4

What characteristic is shown in the image?

• Polarity

• Hydrogen Bonds

• Cohesion

• Adhesion

What property of water allows for water to act as a temperature regulator for the world?

• Cohesive Behavior

• Expansion Upon Freezing

• High Specific Heat

• Universal Solvent

What word describes when water is attracted to other substances?

• cohesion

• adhesion

• capillary action

• surface tension

True or False: Hydrogen bonds are very weak, which allows for many of the chemical characteristics found in water.

• True

• False

Tags

NGSS.HS-ESS2-5

Because of the unique properties of water associated with hydrogen bonding, water evaporates from pores on the 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 the properties of water that explain this?

• adhesion, cohesion, and translocation

• adhesion, cohesion, and transcription

• cohesion, adhesion, and transpiration

• cohesion, hybridization, and transpiration

Tags

NGSS.MS-LS2-3

Some insects can stand on the surface of calm water. Their feet push the surface of the water down slightly, but they do not break the surface. Why?

• The insects are light enough so they do not break the hydrogen bonds holding the water molecules together
  

• The insects actually use their wings to hover slightly above the water’s surface and they only skim it with their feet.

• The insect’s feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water’s surface.

• The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next
  

Tags

NGSS.MS-PS2-5

Which of the following does not result from hydrogen bonding in water molecules?

• Cohesion

• Adhesion

• Surface Tension

• Dissolving fats

Why is water considered polar?

• Nonpolar covalent bonds in structure

• Ionic bonds in structure

• Polar covalent bonds in structure

• Hydrophobic interaction in structure

Tags

NGSS.HS-PS2-6

Describes the breaking of a bond within a polymer using water.

• Hydrolysis

• Dehydration