Cell Bio - Enzyme Optimum Conditions

Question 1

What are optimum conditions(in terms of enzymes)?

Answer 1

They are the conditions under which a particular enzyme is most active and the rate of reaction cannot go faster.

Question 2

What 2 conditions can affect proteins?

Answer 2

Temperature and pH

Question 3

What is temperature AND what is the best temperature for an enzyme called?

Answer 3

• Measure of how much kinetic energy molecules have
• Best temp = optimum temperature

Question 4

What is pH AND what is the best pH for an enzyme called?

Answer 4

• a measure of how acidic or alkaline a solution is
• best pH = optimum pH

Question 5

DESCRIBE enzyme activity at its optimum temperature/pH

Answer 5

Enzyme activity is increased to a max value. When the temperature/pH rises above the optimum, enzyme activity decreases.

Question 6

Why is enzyme activity low at low temperatures?

Answer 6

It is low because the enzyme and substrate molecules have less kinetic energy, resulting in fewer collisions between them.

Question 7

What happens to enzymes that are way above their optimum temperatures/pHs?

Answer 7

The enzymes become denatured, meaning that the shape of the enzyme is not complementary to its specific substrate.
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