Biochem Review Quiz 4

The tightness across the surface of water that enables paper clips to float is

• surface tension

• capillary action

• polarity

• adhesion

This individual is ice fishing. They cut through the top layers of ice to reach the water and fish below. What property of water allows for this to happen?

• cohesive behavior

• universal solvent

• ability to moderate temperature

• expansion upon freezing

Which end of a water molecule has a slightly positive charge?

• neither end is positive

• the oxygen end

• the hydrogen end

• both ends are slightly positive

The fact that ice floats on liquid water is due to the fact that water's solid form is ________ than its liquid form.

• less polar

• more polar

• more dense

• less dense

Blood functions as a transport mechanism to take nutrients and oxygen to all cells in the body. What property of water allows for this to occur?

• expansion upon freezing

• cohesive behavior

• universal solvent

• ability to moderate temperature

What characteristic of water is shown in this image?

• cohesion

• hydrogen bonds

• adhesion

• polarity

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

• cohesive behavior

• expansion upon freezing

• universal solvent

• high specific heat

The ability of water molecules to stick to each other, creating surface tension, is called

• cohesion

• insulation

• pH

• adhesion

Which of these is LEAST likely to dissolve in water?

• polar sugar molecules

• nonpolar fat molecules

• salt made of a positive sodium ion and a negative chloride ion

• all of the substances will easily dissolve in water

Weak attractions between the negative oxygen atom of one water molecule and the positive hydrogen atom of another water molecule are called

• polar bonds

• covalent bonds

• ionic bonds

• hydrogen bonds