Paper 1 IB Bio Exam on Unit Water MAKE UP

Which of the following is a reason for the retention of water on Earth?

• Different patterns of rainfall across the continents

• The gravitational force of the Moon

• Earth temperatures being high enough for evaporation

• The force of gravity on Earth

Tags

NGSS.MS-ESS2-4

What intermolecular bond is responsible for water's cohesive, adhesive and thermal properties?

• Covalent bond

• Hydrogen bond

• Ionic bond

• Metallic bond

What property of water helps living organisms maintain their internal body temperature?

• Thermal properties

• Cohesive properties

• Adhesive properties

• Solvent properties

What is the most accepted theory for the origin of water on Earth?

• Asteroids from space containing ice arrived on Earth billions of years ago

• Respiration from early organisms released water into the atmosphere

• Heat from ancient deep-sea vents catalyzed the reaction between hydrogen and oxygen atoms

• Early volcanic eruptions, released steam into the atmosphere

Tags

NGSS.HS-ESS2-5

Which of the following is not soluble in water?

• Glucose

• Amino Acids

• Cholesterol

• Sodium Chloride

What substances are attracted to water and form intermolecular bonds with water molecules?

• Insoluble substances

• Hydrophobic substances

• Hydrophilic substances

• Non-polar substances

Which is the correctly annotated diagram of a molecule of water? [Maximum mark: 6]

Tags

NGSS.MS-PS1-1

Hydrogen bonds form between water molecules due to:

• The attraction between the positive end of one water molecule and the negative end of another.

• The repulsion between the positive ends of two water molecules.

• The sharing of electrons between water molecules.

• The covalent bonding between hydrogen and oxygen atoms within a water molecule.

Tags

NGSS.HS-ESS2-5

One of the ways hydrophilic substances interact with water is:

• They repel water molecules.

• They form hydrogen bonds with water.

• They dissolve in non-polar solvents.

• They increase water's surface tension.

State one of the ways how non-polar molecules interact with water.

• They form hydrogen bonds with water.

• They are repelled by water and form clathrate structures.

• They dissolve completely in water.

• They ionize in water.