Enzymes, Photosynthesis and Cellular Respiration

Front

What are enzymes?

Back

Enzymes are proteins that catalyze (speed up) chemical reactions in living organisms.

Front

What is the role of a substrate in enzyme activity?

Back

A substrate is the reactant that an enzyme acts upon, binding to the enzyme's active site.

Front

What does it mean for an enzyme to be specific to a substrate?

Back

It means that each enzyme only catalyzes a specific reaction for a particular substrate due to its unique shape.

Front

What is enzyme inhibition?

Back

Enzyme inhibition occurs when a molecule (inhibitor) binds to an enzyme and decreases its activity.

Front

What is the effect of an inhibitor on an enzyme?

Back

An inhibitor prevents a substrate from attaching to the enzyme, thus blocking the reaction.

Front

What are the reactants of photosynthesis?

Back

The reactants of photosynthesis are carbon dioxide and water.

Front

What are the products of photosynthesis?

Back

The products of photosynthesis are glucose and oxygen.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What are the reactants of cellular respiration?

Back

The reactants of cellular respiration are glucose and oxygen.

Front

What are the products of cellular respiration?

Back

The products of cellular respiration are carbon dioxide, water, and ATP (energy).