Enzymes

Question 1

what are enzymes?

Answer 1

special proteins in the body that help speed up chemical reactions

Question 2

made of?

Answer 2

long chains of amino acids

Question 3

what are catalyst?

Answer 3

a substance that increases speed of a reaction
(without being used or changed in the process)

Question 4

enzymes are also called?

Answer 4

biological catalysts

Question 5

how do they work?

Answer 5

in conjunction with substrates
(connect at the active site)

Question 6

active site?

Answer 6

matches the shape of a specific substrate
where it connects
(lock and key mechanism)

Question 7

induced fit?

Answer 7

changes shape slightly to accommodate substrate

Question 8

more energy means?

Answer 8

more collisions

Question 9

sensitive to?

Answer 9

temperatures and pH

Question 10

1. high temps do what?
2. active site then does what?
3. end?
4. what is this point called?

Answer 10

1- break the bonds
2- change shape
3- if shape changes enough, enzyme won’t bind
4- denatured

Question 11

optimal temperatures?

Answer 11

diff enzymes have diff optimal temperatures

Question 12

pH?

Answer 12

a measure of acidity

Question 13

pH too high or low?

Answer 13

will lower the rate of reaction

Question 14

what is substrate?

Answer 14

the reactant