AP Bio Insta-Review Topic 1.1: Structure of Water & H Bonding

Front

What type of bond is found between water molecules?

Back

Hydrogen bond.

Front

What type of bond is found in water molecules?

Back

Covalent bond.

Front

What property of water allows lake life to survive winter?

Back

Water is less dense as a solid than as a liquid.

Front

Where are hydrogen bonds found in proteins?

Back

Between the backbone of the polypeptide chain.

Front

What property of water is responsible for skipping rocks on a pond?

Back

Cohesion.

Front

Define cohesion in the context of water.

Back

Cohesion is the attraction between molecules of the same substance, which in water leads to surface tension.

Front

Define adhesion in the context of water.

Back

Adhesion is the attraction between molecules of different substances, such as water molecules and plant cell walls.

Front

What is the significance of water's high specific heat?

Back

It allows water to absorb and release large amounts of heat with minimal temperature change, stabilizing climates and organisms.

Front

Explain why ice floats on water.

Back

Ice is less dense than liquid water due to the hydrogen bonds forming a crystalline structure.

Front

What is the role of hydrogen bonds in water's unique properties?

Back

Hydrogen bonds contribute to water's high specific heat, cohesion, adhesion, and its solid form being less dense than its liquid form.