A1.1 Water - IB Questionbank | RevisionDojo

A1.1 Water

A1.2 Nucleic acids

A2.1 Origins of cells (HL)

A2.2 Cell structure

A2.3 Viruses (HL)

A3.1 Diversity of organisms

A3.2 Classification and cladistics (HL)

A4.1 Evolution and speciation

A4.2 Conservation of biodiversity

A1.1 Water Questionbank

Practice A1.1 Water with authentic IB Biology exam questions for both SL and HL students. This question bank mirrors Paper 1A, 1B, 2 structure, covering key topics like cell biology, genetics, and ecology. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.

Paper

Level

Question 1

SLPaper 1A

Water molecules can adhere to polar surfaces such as cellulose. What is a biological consequence of this property?

Question 2

SLPaper 1A

Water molecules contain polar covalent bonds due to unequal sharing of electrons. What is the result of this polarity?

Question 3

SLPaper 1A

In plant tissues, adhesion between water and cellulose supports water movement. What would be the likely consequence if plant cell walls were composed of hydrophobic material?

Question 4

SLPaper 1A

Cohesion between water molecules creates surface tension. Which situation best illustrates the biological importance of this property?

Question 5

SLPaper 1A

What allows water to dissolve many substances?

Question 6

SLPaper 1A

Surface tension is a result of cohesive forces between water molecules. Which organism benefits from this property?

Question 7

SLPaper 1A

Water has greater density and viscosity than air. What is a biomechanical implication for animals such as the ringed seal?

Question 8

SLPaper 1A

Water adheres to polar particles in soil. What is the result of this adhesion for plants?

Question 9

SLPaper 1A

Surface tension arises from unbalanced hydrogen bonding at the air–water interface. What ecological consequence does this property have?

Question 10

HLPaper 1A

Which property of water is most important to plants living below the surface of water?

Paper

Level

Question 1

SLPaper 1A

Water molecules can adhere to polar surfaces such as cellulose. What is a biological consequence of this property?

Question 2

SLPaper 1A

Water molecules contain polar covalent bonds due to unequal sharing of electrons. What is the result of this polarity?

Question 3

SLPaper 1A

In plant tissues, adhesion between water and cellulose supports water movement. What would be the likely consequence if plant cell walls were composed of hydrophobic material?

Question 4

SLPaper 1A

Cohesion between water molecules creates surface tension. Which situation best illustrates the biological importance of this property?

Question 5

SLPaper 1A

What allows water to dissolve many substances?

Question 6

SLPaper 1A

Surface tension is a result of cohesive forces between water molecules. Which organism benefits from this property?

Question 7

SLPaper 1A

Water has greater density and viscosity than air. What is a biomechanical implication for animals such as the ringed seal?

Question 8

SLPaper 1A

Water adheres to polar particles in soil. What is the result of this adhesion for plants?

Question 9

SLPaper 1A

Surface tension arises from unbalanced hydrogen bonding at the air–water interface. What ecological consequence does this property have?

Question 10

HLPaper 1A

Which property of water is most important to plants living below the surface of water?