3.1.8 Enzymes in Industry Flashcards Preview

SHHS - Science - B3.1 New Technology - Year 9 > 3.1.8 Enzymes in Industry > Flashcards

Flashcards in 3.1.8 Enzymes in Industry Deck (24)
Loading flashcards...
1

An enzyme is a catalyst. What does this mean?

That enzymes speed up chemical reactions without being used up.

2

Give 3 uses for enzymes.

1. Making baby food
2. Extracting juice from fruit.
3. Removing stains from clothes

3

Babies find it difficult to digest...

high-protein foods

4

The protein in high-protein baby food can be broken down by an enzyme called ____________

protease

5

What does protease break protein down into?

Amino acids

6

The cell walls of fruit skins contain ________

pectin

7

Which enzyme is added to fruit to break down pectin?

Pectinase

8

Why is pectinase added to fruit?

To break down pectin and make fruit easier to squeeze and release more juice.

9

How do enzymes help to break down stains?

They are added to washing powders.

10

What is a 'biological washing powder'?

A washing powder that contains enzymes

11

Name some protein containing stains

Egg
Blood

12

Name some fat containing stains

Butter
Oil

13

Which enzyme breaks down fat?

Lipase

14

The speed at which enzymes catalyse a reaction depends on...

the temperature

15

Generally the higher the temperature, the _________ the reaction.

faster

16

If the temperature rises too high an enzyme may...

denature

17

What is meant by an enzyme denaturing?

Its active site changes shape so the substrate can no longer fit.

18

The thing an enzyme acts upon is called a...

substrate

19

The part of an enzyme that a substrate binds to is called the...

active site.

20

The temperature that an enzyme works best at is called its...

optimum temperature.

21

Enzymes can be denatured by...

High temperature
Changes of pH

22

Give an example of a reaction that is sped up by an enzyme.

Digestion of protein.

23

The name of an enzyme usually ends with...

-ase

24

Carbohydrase is an enzyme that breaks down...

carbohydrates