Front

What is the primary function of enzymes in biological reactions?

Back

Enzymes speed up chemical reactions by lowering the activation energy required.

Front

What happens to an enzyme when it denatures?

Back

The enzyme loses its specific shape and can no longer function properly.

Front

What are proteins made of?

Back

Proteins are made of long chains of amino acids.

Front

What is the role of antibodies in the immune system?

Back

Antibodies are proteins that help fight infections by recognizing and neutralizing pathogens.

Front

What is the difference between a protein and a polypeptide?

Back

A polypeptide is a chain of amino acids, while a protein is a functional molecule made up of one or more polypeptides.

Front

What is the significance of the sequence of amino acids in a protein?

Back

The sequence determines the protein's structure and function.

Front

What are the four levels of protein structure?

Back

The four levels are primary, secondary, tertiary, and quaternary structure.

Front

What is denaturation and what can cause it?

Back

Denaturation is the process where proteins lose their structure due to factors like heat, pH changes, or chemicals.

Front

What is the function of structural proteins?

Back

Structural proteins provide support and shape to cells and tissues, such as collagen in connective tissues.

Front

What is the role of transport proteins?

Back

Transport proteins carry substances across cell membranes or throughout the body, like hemoglobin transporting oxygen.