Macromolecule Test Practice

Front

What are macromolecules?

Back

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

Front

What are carbohydrates?

Back

Organic compounds made of carbon, hydrogen, and oxygen, which serve as a primary energy source for living organisms.

Front

What are the main types of carbohydrates?

Back

Monosaccharides (simple sugars), disaccharides (two sugars), and polysaccharides (many sugars, e.g., starch, glycogen, cellulose).

Front

What is the function of lipids?

Back

Lipids store energy, provide insulation, and make up cell membranes.

Front

What is the structure of a phospholipid?

Back

A phospholipid consists of a hydrophilic (water-attracting) 'head' and two hydrophobic (water-repelling) 'tails', forming a bilayer in cell membranes.

Front

What are proteins made of?

Back

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

Front

What is the role of enzymes?

Back

Enzymes are biological catalysts that speed up chemical reactions in the body without being consumed.

Front

What is the 'lock and key' model of enzyme activity?

Back

A model that explains how enzymes and substrates fit together specifically, like a key fits into a lock.

Front

What are nucleic acids?

Back

Macromolecules that store and transmit genetic information, including DNA and RNA.

Front

What is the primary function of glycogen?

Back

Glycogen serves as a form of energy storage in animals, primarily in the liver and muscles.