Enzymes

Question 1

What are enzymes?

Answer 1

Protein catalysts that speed up the rate of reactions at low temperatures

Question 2

What type of energy increases the rate of reactions?

Answer 2

Thermal

Question 3

Fill the blanks: It _ the amount of energy to run the reaction

Answer 3

reduces

Question 4

What is an exergonic reaction?

Answer 4

-releases energy
-produces have less energy than reactants
-Exothermic: heat loss

Question 5

What breaks down Nucleic Acids?

Answer 5

Nucleases

Question 6

What breaks down proteins?

Answer 6

Proteases

Question 7

What breaks down Sucrose?

Answer 7

Sucrase

Question 8

what is another word for “break down”

Answer 8

Hydrolysis

Question 9

What breaks down Lipids?

Answer 9

Lipases

Question 10

What are the 3 steps of the Lock and Key Model?

Answer 10

1. The substrate bonds to the enzyme forming enzyme-substrate complex
2. The binding of the substrate and enzyme (active site) places stress on the substrate bond. Bond breaks
3. Products are released and enzyme is free to bind to other substrates

Question 11

What does the Substrate bond consist of?

Answer 11

Sucrose, glucose and fructose bonded together

Question 12

What is the active site?

Answer 12

the area that joins with the substrate molecules.

Question 13

What is the purpose of cofactors or coenzymes?

Answer 13

to help bind enzymes to substrate molecules.

Question 14

What are cofactors?

Answer 14

Inorganic ions (minerals)

Question 15

What are coenzymes?

Answer 15

Organic molecules