Enzymes & Energy Flashcard

Front

What is an enzyme?

Back

A biological catalyst that speeds up chemical reactions by lowering the activation energy.

Front

What is the optimum pH for an enzyme?

Back

The pH at which an enzyme's activity is highest.

Front

What happens to enzymes at high temperatures?

Back

They can become denatured, altering their shape and function.

Front

What is the role of enzymes in chemical reactions?

Back

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

Front

What is denaturation in enzymes?

Back

The process where an enzyme loses its functional shape due to external factors like heat or pH.

Front

What is the equation for photosynthesis?

Back

6 CO2 + 6 H2O + Sunlight -> C6 H12 O6 + 6O2.

Front

What is the effect of pH on enzyme activity?

Back

Enzyme activity can increase or decrease depending on the pH level, with each enzyme having an optimum pH.

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Front

How do enzymes affect activation energy?

Back

Enzymes lower the activation energy needed for reactions, making them occur faster.

Front

What is the relationship between temperature and enzyme activity?

Back

Enzyme activity typically increases with temperature up to a certain point, after which it decreases due to denaturation.