Enzymes

Question 1

A catalyst

Answer 1

is a substance that increases the rate of a chemical reaction and is not changed by the reaction.

Question 2

Enzymes

Answer 2

proteins that are involved in all metabolic reactions, where they function as biological catalysts.

Question 3

Enzymes increase the reaction rate to the

Answer 3

necessary reaction rate to sustain life.

Question 4

Enzymes and substrate

Answer 4

collide. Enzyme and substrate fit together. Substate binds
with Enzymes active site. Enzyme substrate complex forms. Because enzyme is Complementary to its substrate. This results in the formation of a product.

Question 5

Enzymes are specific

Answer 5

Substate fits into the active site of an enzyme. Therefore, the
shape of the enzyme and substrate must be complementary

Question 6

If the temperature is increased

Answer 6

enzymes gain kinetic energy and enzymes move
faster, the frequency of effective collisions increases. If the temperature increases above the optimum temperature, the enzyme loses its shape and the enzyme denatures. The substrate no longer fits into the enzyme’s active site. And the enzyme can not catalyze the reaction anymore.

Question 7

If the temperature is decreased

Answer 7

enzymes lose kinetic energy and move slower,
frequency of effective collisions decrease. Therefore, the rate of reaction decrease.
Enzymes do not denature in this process.

Question 8

Extreme pH can also

Answer 8

denature the enzyme