module 2 enzymes

Question 1

enzymes

Answer 1

biological catalysts
globular proteins with substrates
needed for anabolic and catabolic
supplied activation energy

Question 2

lock and key

Answer 2

area complementary to substrate molecule, substrate binds to active site, enzyme substrate complex formed. r groups make temp bonds.

Question 3

induced fit hypothsis

Answer 3

active site changes as substrate enters-weak interaction as changes tertiary structure=strength binding, strains on substrate, leading to a weaker bond=less energy, so less activation energy.

Question 4

starch

Answer 4

broken by amylase to maltose.
salivary glands and pancreas

Question 5

maltose

Answer 5

broken by maltase to glucose
small intestines.

Question 6

factors affecting enzymes

Answer 6

temp-denatured if high, as breaks h2 bonding and ionic bonds between r group.
pH=h+ and oh- interferes, so active site changes

Question 7

q10

Answer 7

rate at temp+10/rate at temp

Question 8

inhibitors

Answer 8

molecules preventing enzyme carrying normal functiono

Question 9

competitive inhibitors

Answer 9

molecule similar shape to substrate, and blocks entering, inhibited. most=reversible=statin
not reversib le=asprin

Question 10

non competitive inhibitors

Answer 10

bind to allosteric site, where teritary structure of enzyme changes.
IREVERSIABLE

Question 11

end producy inhibition

Answer 11

helps regulate pathway/control amount of products

Question 12

cofactors

Answer 12

non proetin molecules helping substrate bind to ion.
prothestic groups=permaent

Question 13

inactive precuraor

Answer 13

produced inactivity
need change in shape-mostly active site.
prevent enzyme damaging cell

Question 14

coenzyme

Answer 14

non protein molecules, and not permanent.
allow enzyme to function.