part 1

Question 1

what are enzymes (structurally)

Answer 1

tertiary globular proteins

Question 2

how are enzymes formed

Answer 2

protein chain is folded back on itself into a spherical or globular shape

Question 3

what bonds are in enzymes

Answer 3

hydrogen bonds
disulphie bridges
ionic bonds

Question 4

defenition of an enzyme

Answer 4

biological catalysts
increases rate of metabolic reactions without being used up themselves

Question 5

what are anabolic enzymes

Answer 5

build larger products from smaller substrate molecules

Question 6

what are catabolic enzymes

Answer 6

break down large substrate molecules into smaller products

Question 7

example of a enzyme

Answer 7

lysosome

Question 8

function of lysosome

Answer 8

destroy bacteria by breaking down their cell walls

Question 9

what are the 2 different enzyme theories

Answer 9

collision
induced fit

Question 10

what is collision theory

Answer 10

needs enough activation energy (kinetic energy) to collide

Question 11

what is induced fit hypothesis

Answer 11

enzyme changes shape slightly to accomidate substrate

Question 12

effect of induced fit distorting a bond

Answer 12

makes substrate less stable
reduces potential energy
lowers activation energy of reaction

Question 13

3 properties of enzymes

Answer 13

specific
efficient
need activation energy

Question 14

what is activation energy

Answer 14

eneergy needed to break existing chemical bonds into molecules