Unit 1- Review- The Chemistry of Life

Front

What property of water allows it to resist the downward pull of gravity in plants?

Back

Adhesion is the property of water that allows it to stick to other substances, helping it to move against gravity in plants.

Front

What is the structure of a nucleotide?

Back

A nucleotide is composed of a phosphate group, a sugar, and a nitrogenous base.

Front

What determines the primary structure of a protein?

Back

The primary structure of a protein is determined by peptide bonds that link amino acids together.

Front

What is a characteristic of proteins?

Back

Proteins are polymers of amino acids, which are linked by peptide bonds.

Front

Which property of water is most important for the movement of water from roots to leaves in plants?

Back

Cohesion is the property that allows water molecules to stick together, facilitating movement through plant vessels.

Front

Define cohesion in the context of water.

Back

Cohesion is the attraction between water molecules due to hydrogen bonding, which helps maintain water's structure.

Front

What role do hydrogen bonds play in water's properties?

Back

Hydrogen bonds contribute to water's high specific heat, surface tension, and cohesion.

Front

Explain the significance of high specific heat in water.

Back

High specific heat allows water to absorb and release large amounts of heat without significant temperature changes, stabilizing environments.

Front

What is the difference between adhesion and cohesion?

Back

Adhesion is the attraction between different substances, while cohesion is the attraction between similar molecules.

Front

What are the building blocks of proteins?

Back

The building blocks of proteins are amino acids, which are linked by peptide bonds.