Enzymes - Temperature & pH

Carbohydrates

Lipids

Proteins

Nucleic Acids

Because they are a source of energy

Because they speed up chemical reactions

Because they are a type of carbohydrate

Because they provide structural support

the energy given off during a reaction

the energy required for a reaction to occur

changing the shape of the enzyme

the place where the enzyme matches with the substrate

True

False

Enzymes work best at an optimum temperature.

Enzyme activity increases indefinitely with temperature.

High temperatures can denature enzymes.

Enzymes are not affected by temperature changes.

Enzyme A

Enzyme B

Enzymes work best at an optimum pH.

Enzyme activity increases indefinitely with temperature.

A pH that is too low (acidic) or too high (basic) can denature enzymes.

Enzymes are not affected by temperature changes.