Enzymes, Photosynthesis & Cellular Respiration

Front

What are the two reactants of cellular respiration?

Back

C6H12O6 (glucose) and 6O2 (oxygen)

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes act as catalysts to speed up biochemical reactions by lowering the activation energy required.

Front

What happens to enzyme activity at higher temperatures?

Back

Enzyme activity generally increases with temperature up to a certain point, after which it may decrease due to denaturation.

Front

What is denaturation in the context of enzymes?

Back

Denaturation is the process where an enzyme's structure is altered, leading to a loss of function.

Front

What is the effect of pH on enzyme activity?

Back

Each enzyme has an optimal pH range; deviations can lead to decreased activity or denaturation.

Front

What is a substrate in enzyme reactions?

Back

A substrate is the reactant molecule upon which an enzyme acts.

Front

How do competitive inhibitors affect enzyme activity?

Back

Competitive inhibitors bind to the active site of an enzyme, preventing the substrate from binding and thus decreasing enzyme activity.

Front

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

Back

The active site is the region of the enzyme where substrate binding occurs, facilitating the catalytic process.

Front

What is the relationship between enzyme concentration and reaction rate?

Back

Increasing enzyme concentration generally increases the reaction rate, provided there is enough substrate available.

Front

What is the role of ATP in cellular respiration?

Back

ATP (adenosine triphosphate) is the primary energy carrier in cells, produced during cellular respiration.