Unit 1 AP Biology Insta-Review (Chemistry of Life)

Front

What is the secondary structure of a protein?

Back

The secondary structure of a protein refers to the local folded structures that form within a polypeptide due to hydrogen bonding between the backbone atoms. Common examples include alpha helices and beta sheets.

Front

What property of water is responsible for its high specific heat?

Back

Water's high specific heat is due to the hydrogen bonds between water molecules, which require a significant amount of energy to break, allowing water to absorb heat without a large increase in temperature.

Front

What are the products of protein hydrolysis?

Back

The products of protein hydrolysis are amino acids, which are the building blocks of proteins.

Front

Why are lipids not considered polymers?

Back

Lipids are not considered polymers because they do not consist of repeating monomer units. Instead, they are made up of various components such as fatty acids and glycerol.

Front

What level of protein structure is affected by R group interactions?

Back

The tertiary structure of a protein is affected by interactions between the R groups (side chains) of the amino acids.

Front

Define primary structure of a protein.

Back

The primary structure of a protein is the linear sequence of amino acids in a polypeptide chain, determined by the genetic code.

Front

What is the role of hydrogen bonds in protein structure?

Back

Hydrogen bonds play a crucial role in stabilizing the secondary and tertiary structures of proteins by forming between the backbone and side chains of amino acids.

Front

Explain the concept of cohesion in water.

Back

Cohesion refers to the attraction between water molecules due to hydrogen bonding, which allows water to form droplets and contributes to its surface tension.

Front

What is the significance of water's less dense solid form?

Back

Water's solid form (ice) is less dense than its liquid form, allowing ice to float on water, which insulates aquatic life during cold temperatures.

Front

What are monosaccharides?

Back

Monosaccharides are the simplest form of carbohydrates, consisting of single sugar molecules like glucose and fructose.