IB Biology water flashcard

Front

What are the three main properties of water?

Back

Liquid, high specific heat capacity, surface tension.

Front

How does water play a crucial role in biological systems?

Back

Water is the main component of cells and is involved in various metabolic processes.

Front

What is the role of water in maintaining temperature regulation in organisms?

Back

Water acts as a coolant and facilitates heat transfer through processes like sweating and evaporation.

Front

Why does ice float on water?

Back

Ice has a lower density than water.

Front

Explain the concept of polarity in water molecules.

Back

Uneven distribution of electrical charge within the molecule.

Front

What is specific heat capacity?

Back

The amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius.

Front

How does water's high specific heat capacity benefit organisms?

Back

It helps to stabilize temperature in organisms and their environments.

Front

What is surface tension in water?

Back

The cohesive force at the surface of water that makes it behave like a stretched elastic membrane.

Front

What is the significance of water as a solvent?

Back

Water can dissolve many substances, making it essential for biochemical reactions.

Front

How does water's polarity affect its interactions with other molecules?

Back

Water's polarity allows it to form hydrogen bonds with other polar molecules.