Enzymes In Action

Question 1

What is the bond called between amino acids?

Answer 1

Peptide bond or condensation reaction

Question 2

What are the secondary 2° shapes

Answer 2

Alpha helix
b Pleated sheet

Beta pleated sheet

Question 3

What are tertiary shape 3° called and what are they made of?

Answer 3

Globule

Alpha helix coiled up

Question 4

What makes quotenary structure 4° (a complex)

Answer 4

2 or more globules together

Question 5

What is an example of a quotenary structure 4°

Answer 5

Haemoglobin

Question 6

Enzymes are made up of what?

Answer 6

A globule, amino acids, 3° shape tertiary shape

Question 7

What are amino acids?

Answer 7

They are the building blocks of proteins

Question 8

What are some functions of proteins?

Answer 8

Enzymes

Antibodies

Carry messages (hormones)

Bind cells into tissues

Question 9

What are enzymes?

Answer 9

They are biological catalysts

Question 10

What enzyme breaks down fats and into what?

Answer 10

Lipase

Fats —⟩ fatty acids + glycerol

Question 11

What enzyme breaks down proteins and into what?

Answer 11

Protease

Protein —⟩ amino acids

Question 12

What enzyme breaks down carbohydrates and into what?

Answer 12

Carbohydrase

Starch —⟩ glucose

Question 13

How do enzymes work?

Answer 13

They lower the activation energy needed for a reaction to happen

Question 14

How are secondary structures held together?

Answer 14

With hydrogen bonds

Question 15

What factors affect enzyme activity?

Answer 15

pH

Temperature

Substrate concentration

Enzyme concentration

Question 16

What is collision theory?

Answer 16

That a reaction takes place when the 2 molecules collide with enough energy to overcome the activation energy

Question 17

Why do enzymes denature at certain temperature?

Answer 17

Because the bonds holding enzymes in shape may be broken

This changes the shape of the active site

So the substrate can no longer bind to the active site