EL Bio 1.3 Enzyme QUIZ

1

An enzyme is what type of macromolecule?

nucleic acid

carbohydrate

protein

1

What model has an enzyme fiting perfectly with its substrate?

activation model

lock and key model

puzzle piece model

1

Pepsin (enzyme in stomach to digest food) works best at pH of 2.
Which graph best shows what will happen to the activity of pepsin as the pH of the stomach is increased?

null

1

Enzymes can only work with a particular substrate because...

the substrate and enzyme permanently bond

an enzyme is only used once before it is destroyed

the substrate and enzyme have specific matching shapes

3

Choose all that affect enzyme function (how well it works / como se funciona).

concentration of substrate or enzyme

the types of bonds found in the molecules

pH

temperature

1

Observe the graph above. Which letter represents the reaction with the presence of an enzyme?

A

D

B

5

Using the picture above, match the numbers with the correct term.

Stavka koja se može prevući		Odgovarajuća stavka
Active site		1
Substrates		5
Enzyme		3
Enzyme-substrate complex		2
Products		4

1

An enzyme works by

raising ⬆ the activation energy and decreasing ⬇ the speed of reaction

denaturing the molecule

lowering ⬇ the activation energy and increasing ⬆ the speed of reaction

1

At what pH is lipase denatured (stops working completely / paren de trabajar)?

below 4 and above 12 (abajo de 4 y arriba de 12)

between 4 and 12 (entre 4-12)

8

EL Bio 1.3 Enzyme QUIZ

An enzyme is what type of macromolecule?

What model has an enzyme fiting perfectly with its substrate?

Pepsin (enzyme in stomach to digest food) works best at pH of 2. Which graph best shows what will happen to the activity of pepsin as the pH of the stomach is increased?

Enzymes can only work with a particular substrate because...

Choose all that affect enzyme function (how well it works / como se funciona).

Observe the graph above. Which letter represents the reaction with the presence of an enzyme?

Using the picture above, match the numbers with the correct term.

An enzyme works by

At what pH is lipase denatured (stops working completely / paren de trabajar)?

An enzyme is what type of macromolecule?

What model has an enzyme fiting perfectly with its substrate?

Pepsin (enzyme in stomach to digest food) works best at pH of 2. Which graph best shows what will happen to the activity of pepsin as the pH of the stomach is increased?

Enzymes can only work with a particular substrate because...

Choose all that affect enzyme function (how well it works / como se funciona).

Observe the graph above. Which letter represents the reaction with the presence of an enzyme?

Using the picture above, match the numbers with the correct term.

An enzyme works by

At what pH is lipase denatured (stops working completely / paren de trabajar)?

Pepsin (enzyme in stomach to digest food) works best at pH of 2.
Which graph best shows what will happen to the activity of pepsin as the pH of the stomach is increased?

Pepsin (enzyme in stomach to digest food) works best at pH of 2.
Which graph best shows what will happen to the activity of pepsin as the pH of the stomach is increased?