Enzymes

Question 1

biological catalysts

Answer 1

enzymes

Question 2

proteins that have a unique three-dimensional shape

Answer 2

enzymes

Question 3

are highly specific

Answer 3

enzymes

Question 4

form complexes with their specific substrates when these substances bind to the active site of the

Answer 4

enzymes, enzyme

Question 5

The binding of a substrate to an enzyme active site is termed the

Answer 5

“enzyme-substrate complex

Question 6

speed up chemical reactions without themselves being used up or altered in any way

Answer 6

biological catalyst

Question 7

how does biological catalysts speed up without themselves being used up or altered in anyway

Answer 7

catalysts do this by lowering the activation of chemical reactions to proceed

Question 8

the amount of energy required for a chemical action to proceed.

Answer 8

the activation energy (Ea)

Question 9

The lower the activation energy for a reaction

Answer 9

the faster the rate

Question 10

what speeds up reactions by lowering activation energy

Answer 10

enzymes

Question 11

contains active sites which bind specific substrates

Answer 11

an enzymes

Question 12

is a substance that enzymes act upon

Answer 12

a substrate

Question 13

What is the equation for the complex formation of the enzyme-substrate complex

Answer 13

E + S ——-> ES ——> E + P

enzyme + substrate –> Enzyme-Substrate Complex —-> Enzyme + Product

Question 14

an enzyme found in the liver

Answer 14

a catalase

Question 15

What are the two ways to measure enzyme activity

Answer 15

1. Determine the rate of disappearance of substrate

2. Determine the rate of appearance of the product