C1.1 Enzymes and metabolism

Front

What is the role of enzymes as catalysts in cells?

Back

Enzymes increase the rate of biochemical reactions in cells by lowering activation energy.

Front

How do enzymes benefit living organisms?

Back

They increase reaction rates, allowing vital metabolic processes to occur at life-sustaining speeds.

Front

What is metabolism?

Back

Metabolism is the network of interdependent and interacting chemical reactions that occur in living organisms.

Front

Why do living organisms require many different enzymes?

Back

Due to enzyme specificity, different enzymes are needed to catalyze different biochemical reactions.

Front

What is the role of enzymes in metabolism?

Back

Enzymes control and regulate metabolism by catalyzing specific reactions in metabolic pathways.

Front

What is an example of an anabolic reaction?

Back

Protein synthesis is an example of an anabolic reaction where smaller molecules are joined to form macromolecules.

Front

What is an example of a catabolic reaction?

Back

The hydrolysis of macromolecules during digestion is an example of a catabolic reaction.

Front

What happens in anabolic reactions?

Back

Smaller molecules are built into larger ones, often requiring energy input.

Front

What happens in catabolic reactions?

Back

Larger molecules are broken down into smaller ones, releasing energy.

Front

How are enzymes structured as globular proteins?

Back

Enzymes are globular proteins with a specific three-dimensional structure that includes an active site for catalysis.