1.8 factors effecting enzyme action

Question 1

Hep does temperature help increase the rate of reaction

Answer 1

This is because the thermal energy turns to kinetic energy as a result molecules have more successful collision meaning more enzyme substrate complex can be formed

Question 2

How does temperature decrease rate of reaction

Answer 2

Rise in temperature causes hydrogen and other bonds in an enzyme molecule to break. The active site changes shape and the substrate can not fit into the active site as easily. When the substrate can no longer fit into the changed active site it is called denaturing.

Question 3

What is the optimum temperature for enzymes in human body

Answer 3

40°C

Question 4

How does pH affect rate of reaction

Answer 4

If pH is not optimum the rate of reaction will decrease however if the change is drastic the enzyme will become denatured

Question 5

How does pH affect a enzyme

Answer 5

A change in pH alters the charges on the amino acids in the active site therefore ESC( enzyme substrate complex) can no longer be formed

Question 6

What happens if enzyme concentration is increased

Answer 6

At first if there is an excess of substrate the increase of enzyme concentration will be proportional to rate of reaction but if substrate is limiting factor then the rate of reaction will not increase even if enzyme concentration does

Question 7

What happens when substrate concentration is increased

Answer 7

At first the rate of reaction will increase because the enzymes will begin to work at full capacity but when they are working at full capacity an increase in substrate concentration will not affect the rate of reaction