Question: What Are Three Conditions That Affect The Activity Of An Enzyme?

What are some factors that can affect enzyme activity quizlet?

Terms in this set (12)Temperature too high.

Enzymes denature.

High temperature.

Reactions happen faster.

Temperature too low.

Reactions happen slower.


Different proteins work best at different pH’s.pH too high/too low.

Substrate concentration.

Enzyme concentration.

Enzyme cofactors (vitamins)More items….

What does the activity of an enzyme depend on?

Enzymes work by lowering the activation energy needed to start biochemical reactions. The activities of enzymes depend on the temperature, ionic conditions, and the pH of the surroundings.

What are 3 things that can denature an enzyme?

Enzyme activity can be affected by a variety of factors, such as temperature, pH, and concentration. Enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate.

What are the 2 types of enzyme inhibitors?

There are two types of inhibitors; competitive and noncompetitive inhibitors. Competitive inhibitors bind to the active site of the enzyme and prevent substrate from binding.

Does pH affect enzyme activity?

Enzymes are also sensitive to pH . Changing the pH of its surroundings will also change the shape of the active site of an enzyme. … This contributes to the folding of the enzyme molecule, its shape, and the shape of the active site. Changing the pH will affect the charges on the amino acid molecules.

How does temperature affect enzyme activity?

As with many chemical reactions, the rate of an enzyme-catalysed reaction increases as the temperature increases. However, at high temperatures the rate decreases again because the enzyme becomes denatured and can no longer function. … As the temperature increases so does the rate of enzyme activity.

What conditions can denature an enzyme?

Enzymes work consistently until they are dissolved, or become denatured. When enzymes denature, they are no longer active and cannot function. Extreme temperature and the wrong levels of pH — a measure of a substance’s acidity or alkalinity — can cause enzymes to become denatured.

What are three conditions that would alter the activity of an enzyme?

Several factors affect the rate at which enzymatic reactions proceed – temperature, pH, enzyme concentration, substrate concentration, and the presence of any inhibitors or activators.

What are 4 things that can denature a protein?

Denaturation is a process in which proteins or nucleic acids lose the quaternary structure, tertiary structure, and secondary structure which is present in their native state, by application of some external stress or compound such as a strong acid or base, a concentrated inorganic salt, an organic solvent (e.g., …

How do temperature and pH affect enzymes quizlet?

Once enzymes denature above the optimum temperature, the decrease in rate of reaction is rapid. However, the decrease in reaction rate below the optimum temperature is less rapid. … When the pH changes (more acidic or alkaline) the active site of the enzyme changes.

What happens if an enzyme is not made correctly?

Because so much of an enzyme’s activity is based on its shape, temperature changes can mess up the process and the enzyme won’t work. High enough temperatures will cause the enzyme to denature and have its structure start to break up. … An increased acidity near an enzyme can cause its shape to change.

Which of the following does not affect the activity of enzymes?

Enzyme concentration does not affect the enzyme activity directly as substrate concentration determine it until the presence of the substrate in an excess amount. Enzymes are the assemblage of protein subunits and hence function under specific temperature and pH range only.