Proteins and Enzymes

Front

What is a protein?

Back

A protein is a large, complex molecule made up of amino acids that performs a variety of functions in the body, including catalyzing biochemical reactions, providing structure, and regulating processes.

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes are biological catalysts that speed up the rate of chemical reactions without being consumed in the process.

Front

What is an enzyme-substrate complex?

Back

An enzyme-substrate complex is a temporary molecule formed when an enzyme binds to its substrate, facilitating the conversion of the substrate into products.

Front

What determines the shape of a protein?

Back

The order and sequence of amino acids in a protein determine its three-dimensional shape, which is crucial for its function.

Front

What is a catalyst?

Back

A catalyst is a substance that increases the rate of a chemical reaction without undergoing any permanent chemical change itself.

Front

How do enzymes lower activation energy?

Back

Enzymes lower the activation energy required for a reaction to occur, making it easier for the reaction to proceed.

Front

What is the significance of the active site of an enzyme?

Back

The active site of an enzyme is the region where substrate molecules bind and undergo a chemical reaction, determining the enzyme's specificity.

Front

What is the difference between a substrate and a product?

Back

A substrate is the reactant that an enzyme acts upon, while a product is the substance formed as a result of the enzyme-catalyzed reaction.

Front

What factors can affect enzyme activity?

Back

Enzyme activity can be affected by temperature, pH, substrate concentration, and the presence of inhibitors or activators.

Front

What is denaturation in proteins?

Back

Denaturation is the process in which a protein loses its native structure due to external stress, such as heat or pH changes, leading to a loss of function.