Macromolecules

Front

What are macromolecules?

Back

Large, complex molecules that are essential for life, including carbohydrates, lipids, proteins, and nucleic acids.

Front

What are the four main types of macromolecules?

Back

Carbohydrates, lipids, proteins, and nucleic acids.

Front

What is the primary function of carbohydrates in living organisms?

Back

To provide and store energy, and to serve as structural components.

Front

What are lipids primarily used for in living organisms?

Back

As sources of stored energy and components of cellular membranes.

Front

What is the significance of water's polarity?

Back

It allows water to form hydrogen bonds, which are crucial for many biological processes.

Front

What is a hydrogen bond?

Back

A weak bond formed between a slightly positive hydrogen atom in one molecule and a slightly negative atom in another.

Front

Why does ice float on water?

Back

Because ice is less dense than liquid water.

Front

What role do proteins play in biological systems?

Back

They serve as enzymes, structural components, and play roles in transport and signaling.

Front

What are nucleic acids and their primary function?

Back

Macromolecules that store and transmit genetic information; examples include DNA and RNA.

Front

What is the structure of a lipid?

Back

Lipids are composed of long hydrocarbon chains or rings, making them hydrophobic.