5. Kinetics

Question 1

Rate of reaction factors

Answer 1

-chemical nature of reactants
-number of successful collisions
-conc of reactants
-temp
-catalysts like enzymes

Question 2

Sucessful collisions

Answer 2

dependant on orientation of reactants

Question 3

What is the state and complex when the molecules meet the activation energy?

Answer 3

Reaches transition state, forming an activated complex

Question 4

Two-step reactions

Answer 4

From reactant to product: two activated complexes at peak of Ea1 and Ea2, with an intermediate (reactive molecule) formed in the middle.
Rate limiting reaction depends on size of Ea1 and Ea2

Question 5

An increase of 10° causes rate to

Answer 5

double

Question 6

Enzymes characterized by:

Answer 6

Speed
Selectivity (selective substrate)
Specificity (specific reaction, achieved by amino acids in active state)

Question 7

What can enzymes be formed by

Answer 7

Proteins
RNA(ribozymes)