Ib Biology

What is the significance of the high specific heat capacity of water in living organisms?

• Protection against extreme temperatures.

• Temperature regulation and stabilization of internal body temperature.

• Enhancement of metabolic reactions.

• Transportation of nutrients and waste products.

Tags

NGSS.HS-ESS2-5

Describe the process of cohesion and adhesion in water.

• Cohesion is the attraction between water molecules, causing them to stick together. Adhesion is the attraction between water molecules and other substances, causing them to stick to surfaces.

• Cohesion is the attraction between water molecules, causing them to stick to surfaces. Adhesion is the attraction between water molecules and other substances, causing them to stick together.

• Cohesion is the attraction between water molecules, causing them to repel each other. Adhesion is the attraction between water molecules and other substances, causing them to repel from surfaces.

• Cohesion is the repulsion between water molecules, causing them to separate. Adhesion is the repulsion between water molecules and other substances, causing them to separate from surfaces.

Explain the importance of water in the transport of nutrients and waste in living organisms.

• Water is essential for the transport of nutrients and waste in living organisms.

• Nutrients and waste can be transported without the presence of water.

• Water is only important for the transport of nutrients, not waste in living organisms.

• Water has no role in the transport of nutrients and waste in living organisms.

Tags

NGSS.HS-LS1-3

What are the three main properties of water?

• solid, low specific heat capacity, buoyancy

• gas, low specific heat capacity, viscosity

• liquid, high specific heat capacity, surface tension

• solid, low specific heat capacity, adhesion

Tags

NGSS.HS-ESS2-5

Why is water considered a universal solvent?

• Water is considered a universal solvent because it is made up of many different elements.

• Water is considered a universal solvent because it is highly acidic.

• Water is considered a universal solvent because it has a low boiling point.

• Water is considered a universal solvent because it has the ability to dissolve a wide variety of substances due to its polar nature.

Hydrophilic means...

• water-loving

• water-fearing

• nonpolar

• lipid soluble

A ______________ is composed of a phosphate and glycerol head and 2 fatty acid chain tails. 

• phospholipid 

• Carbohydrate

• Cholesterol 

• Protein 

At room temperature, water is a liquid and methane is a gas. Which molecular property explains this difference?

• Higher molecular mass of water

• Dipolarity of water

• Presence of more hydrogen in methane

• Higher boiling point than methan

Tags

NGSS.MS-PS1-1

Which substance is more likely to dissolve in water?

• Hydrophillic

• Hydrophobic

Which property of water allows plants to transport water?

• Cohesion

• Adhesion

• Thermal

• Solvent